3.) Make up a word problem for this expression. 3(8a + 5c + 6e)

An equation to represent the situation of the area of the first floor of the house is 182 = F * 20%.

Using letters or alphabets to represent numbers without giving their exact quantities is the idea behind algebraic expressions. The principles of algebra taught us how to express an unknown number using letters like x, y, and z. These letters are referred to here as variables. In an algebraic expression, both constants and variables can be employed. Any amount that is placed before a variable and then multiplied by it is referred to as a coefficient.

The given parameters are:

Area of kitchen = 182 square ft.

Area of first floor = 20% that of the total area of house

Area of 1st floor,

So, we have:

Area of kitchen = F * 20%

This gives

182 = F * 20%

Hence, the area of the first floor an equation to represent the situation is 182 = F * 20%

Learn more about Equations:

https://brainly.com/question/28221069

#SPJ4

Answer:

3 Degrees per hour

Step-by-step explanation:

27 divided by 9 = 3

The perimeter of the larger figure is equal to 20 units as the two figures have a side ratio of 4:3.

A ratio is a comparison of two or more numbers that indicates their sizes in relation to each other. It can be used to express one quantity as a fraction of the other ones.

We shall represent the perimeter of larger figure with the letter x, so that we express their ratios as fractions and solve for x as follows:

4 : 3 = x : 15

4/3 = x/15

x = (4 × 15)/3 {cross multiplication}

x = 4 × 5

x = 20 units

Therefore, the perimeter of the larger figure is equal to 20 units as the two figures have a side ratio of 4:3.

Know more about ratio here: https://brainly.com/question/2328454

#SPJ1

In the equation value of A=[tex]\frac{-32}{5} , B= \frac{36}{5} , C= \frac{1}{10} , D= \frac{-7}{2}[/tex].

What is equation?

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Here the given equation is [tex]\frac{3x^3+4x^2-6x}{x^2+2x+2}= \frac{(Ax+B)}{x^2+2x+2}+\frac {C}{(x-1)}+\frac{D}{x+1}[/tex]

In RHS we multiply to get common denominator. Hence

=> [tex]\frac{3x^3+4x^2-6x}{(x^2+2x+2)(x^2-1)}= \frac{(Ax+B)(x^2-1)+C(x^2+2x+1)(x+1)+D(x-1)(x^2+2x+2)}{(x^2+2x+2)(x^2-1)}[/tex]

Removing the common denominator we get

=> [tex]{3x^3+4x^2-6x}= (Ax+B)(x^2-1)+C(x^2+2x+1)(x+1)+D(x-1)(x^2+2x+2)[/tex]

=> [tex]3x^3+4x^2-6x=Ax^3-Ax+Bx^2-B+Cx^3+Cx^2 +2Cx^2 +2Cx+2Cx+2C+D(x^3 +2x^2 +2x-x ^2 -2x-2)[/tex]

=> [tex]$ 3x^3+4x^2-6x =(A+C+D)x^3+ (B+3C+D)x^2+(-A+2C+2C)x + (-B+2C-2D)[/tex]

We can compare the coefficients to get

3=A+C+D−−−−−−−−1

4=B+3C+D−−−−−−2

−6=−A+4C−−−−−3

0=−B+2C−2D−−−−−−4

Add 2 and 4  then

=> 4 = 5C-D -----------5

Add 1 and 3 then

=> -3 =5C+D--------6

Now subtract 5 from 6 then

=> -7=2D

=> D = -7/2

Now put D=-7/2 into 5 then

=> 4=5c+7/2

=> 1/2=5C

=> C= 1/10

Now put value of C into 3 then

=> -6=-A+ 4×1/10

=> -6-2/5 = -A

=> A = -32/5

Now put C and D into 2 then

=> 4=B+3C+D

=> 4 = B+3/10-7/2

=> 4 = B-32/10

=>4+32/10 = B

=> B= 36/5

Hence in the equation value of A=[tex]\frac{-32}{5} , B= \frac{36}{5} , C= \frac{1}{10} , D= \frac{-7}{2}[/tex].

To learn more about equation refer the below link

https://brainly.com/question/29336774

#SPJ4

The fifth-degree polynomial in standard form is [tex]2x^5+ 5x^4+ x^3+ 3x^2+ 9x+16[/tex]. The polynomial is in the standard form because the powers of the terms are given in decreasing order.

[tex]2x^5+ 5x^4+16[/tex]  + ([tex]x^5+ 2x^4+11[/tex]) = [tex]3x^5+ 7x^4+17[/tex]

Part A:

The degree of the polynomial is the highest power of the terms of the polynomial.

For example 3x³ + x² + 2x is a polynomial of 3rd degree because the highest power of the terms given is 3.

As we need a polynomial of 5th degree the highest power will be 5.

[tex]2x^5+ 5x^4+ x^3+ 3x^2+ 9x+16[/tex]

The above polynomial is in the standard form because the powers of the terms are given in decreasing order. The first term has the highest power and so on.

Part B:

Suppose we have 2 polynomials

[tex]2x^5+ 5x^4+16[/tex] and [tex]x^5+ 2x^4+11[/tex]

When the closure property of addition is applied

[tex]2x^5+ 5x^4+16[/tex]  + ([tex]x^5+ 2x^4+11[/tex])

= [tex]2x^5+ 5x^4+16[/tex]  + [tex]x^5+ 2x^4+11[/tex]

= [tex]3x^5+ 7x^4+17[/tex]

The coefficients are changed because of addition.

The sign will not be changed due to the addition and like terms are added to get the answer.

For more questions on polynomials

https://brainly.com/question/29135952

#SPJ4

Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

Scatterplots are best for showing:

⇒the relationship between two interval/ratio variables

⇒indirect or negative relationship between two ratio variables

Scatterplots display points on a coordinate plane, with one variable plotted on the x-axis and the other variable plotted on the y-axis. This allows us to see the pattern of relationship between the two variables. If there is a positive or negative relationship, we can see if the points tend to increase or decrease as we move from left to right or from bottom to top. If the relationship is indirect, we can see if the points tend to curve in one direction or another.

Scatterplots are not the best visualisation for showing: correlation

frequency of two nominal variables

For showing correlation, a line of best fit (regression line) can be added to a scatterplot, but other visualizations such as a correlation matrix or a heat map are more commonly used.

For showing frequency of two nominal variables, a two-way table or a mosaic plot are better suited, as they can display the count or proportion of cases for each combination of the two nominal variables.

Therefore, Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

To learn more about Scatterplots,

Visit; brainly.com/question/30017616

#SPJ4

Scatterplots are best for showing:

⇒the relationship between two interval/ratio variables

⇒indirect or negative relationship between two ratio variables

Scatterplots display points on a coordinate plane, with one variable plotted on the x-axis and the other variable plotted on the y-axis. This allows us to see the pattern of relationship between the two variables. If there is a positive or negative relationship, we can see if the points tend to increase or decrease as we move from left to right or from bottom to top. If the relationship is indirect, we can see if the points tend to curve in one direction or another.

Scatterplots are not the best visualisation for showing: correlation

frequency of two nominal variables

For showing correlation, a line of best fit (regression line) can be added to a scatterplot, but other visualizations such as a correlation matrix or a heat map are more commonly used.

For showing frequency of two nominal variables, a two-way table or a mosaic plot are better suited, as they can display the count or proportion of cases for each combination of the two nominal variables.

Therefore, Scatterplots are best for showing the relationship between two interval/ratio variables and indirect or negative relationship between two ratio variables.

To learn more about Scatterplots

brainly.com/question/30017616

#SPJ4

The expression -x < 3 is equivalent to x > -3 because division by a negative value changes the inequality sign

From the question, we have the following parameters that can be used in our computation:

-x < 3 is equivalent to x > -3

This is so because

-x < 3 is divided by -1 to get x > -3

As a general rule

A division by a negative value changes the inequality sign

Read more about inequality at

https://brainly.com/question/25275758

#SPJ1

The graph is attached in the solution and the vertices of Δ ABC after transformation, are (3, 4), (6, 9) and (8, 3)

A transformation is a process that manipulates a polygon or other two-dimensional object on a plane or coordinate system.

Given that, T(x, y) = (x + 2, y + 5) and S(x, y) = (x + 2, y – 3). we need to find vertices of Δ ABC after transformation, where A (1, 2), B (2, 7), and C (4, 1).

S(T(A)) = (1+2+2, 2-3+5) = (3, 4)

S(T(B)) = (2+2+2, 7-3+5) = (6, 9)

S(T(C) = (4+2+2, 1-3+5) = (8, 3)

Hence, the graph is attached in the solution and the vertices of Δ ABC after transformation, are (3, 4), (6, 9) and (8, 3)

Learn more about transformation, click;

https://brainly.com/question/11709244

#SPJ1

Answer: When b = 4, the value of -12b is -48.

Step-by-step explanation:

When b = 4, the expression -12b can be evaluated as follows:

-12b = -12 * 4 = -48

So, when b = 4, the value of -12b is -48.

Answer:

Step-by-step explanation:

its just -12 times 4  which is -48

its 0

because zero to four down to the floor and five to nine climb the vine

The expression that would find the percent error is:

(38 - 28) / 38 x 100 = 26%

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Sameera predicted that she would sell 38 blankets.

Actual sold 28 blankets.

Now,

Percentage error.

= (38 - 28) / 38 x 100

= 10/38 x 100

= 26%

Thus,

The percentage error is 26%.

Learn more about percentages here:

https://brainly.com/question/11403063

#SPJ1

The scale factor is given as follows:

1/4.

The ratio of their areas is given as follows:

1/16.

The ratio of their perimeters is given as follows:

1/4.

The ratio of the corresponding side lengths is given as follows:

1/4.

Hence the different question has the answer given as follows:

1/16.

The same question has the answer given as follows:

1/4.

A dilation happens when the coordinates of the vertices of an image are multiplied by the scale factor, changing the side lengths of a figure.

The scale factor for this problem is defined as follows:

k = 3/12

k = 1/4.

As the area in measured in units squared, the ratio is given as follows:

(1/4)² = 1/16.

More can be learned about dilation at brainly.com/question/3457976

#SPJ1

The total height of the taller tree is 95ft.

Given data :

To find the height of the taller tree:

Ratio of base to base = Ratio of height to height

= dws / dws + dwt = hs / ht

= 25 / 25 + 125 = 15 / ht

25 / 150 = 15 / ht

25ht = 15 x 150

25ht = 2250

ht = 2250 / 25

ht = 90

Height of the taller tree above the eye level is 90 ft

To find the total height of the taller tree:

ht + 5 = 90 + 5 = 95

Hence, the total height of the taller tree is 95ft.

Learn more about similar triangle refer to :

https://brainly.com/question/14285697

#SPJ4

The slope-intercept equation of the line is y= 9x + 3

The line with m as the slope, m and c as the y-intercept is the graph of the linear equation y = mx + c. The values of m and c are real integers in the slope-intercept form of the linear equation.

The slope, m, is a measure of how steep a line is. Sometimes, the gradient of a line is referred to as its slope. A line's y-intercept, ab, denotes the y-coordinate of the location where the line's graph crosses the y-axis.

Slope-intercept form of an equation: y=mx+b, where m is the slope (in this case, 9) and b is the y-intercept (in this case, the 3 from the point 0, 3)

y= 9x + 3 ( Plug in 9 for the m (slope) and 3 for the b (y-intercept))

Thus, the slope-intercept equation of the line is y= 9x + 3

To know more about Slope-intercept form visit: brainly.com/question/29146348

#SPJ4

The table for the complete data is,

Item            price before tax        sale tax         price including tax

pillow                $8                          $0.58                   $8.58

blanket              $22                        $1.59                   $23.59

trash can            $14.50                    $1.051                 $15.551

The mandatory tax imposed on the whole value of the items sold is known as the sales tax. Depending on the type of products sold, different sales tax rates apply.

The final amount of sales tax is added to the sale price of the products in the invoice because it is a charge made to the consumer.

Given the sales tax rate is 7.25%.

sales tax rate = 0.0725

to find sales tax and price including tax,

sales tax = price before tax * sales tax rate

and price including tax = sales tax + price before tax

1:  price before tax = $8.00

sales tax = 8*0.0725

sales tax = $0.58

price including tax = 8.00 + .58 = $8.58

2:  price before tax = $22.00

sales tax = 22*0.0725

sales tax = $1.59

price including tax = 22.00 + 1.595 = $23.595

3:  price before tax = $14.50

sales tax = 14.50*0.0725

sales tax = $1.051

price including tax = 14.50 + 1.051 = $15.551

Hence the table is,

Item            price before tax        sale tax         price including tax

pillow                $8                          $0.58                   $8.58

blanket              $22                        $1.59                   $23.59

trash can            $14.50                    $1.051                 $15.551

Learn more about sales tax;

brainly.com/question/20491288

#SPJ1

The complete question is in image attached,

Let Q=k[tex]g^{x} h^{y} c^{z}[/tex]  where x,y,z are the dimensions and k is dimensionless constant. It will give the Planck's length.

This length is the Planck length, and it is 1.6 x 10-35 meters. Writing the dimensions in Q, we will get the following expression :

[M0L1T0]=(M−1L3T−2)x(ML2T−1)y(LT−1)z   = M−x+yL3x+2y+zT−2x−y−z

Applying the principle of homogeneity of dimensions, we get

−x+y=0∴y=x.      iii

3x+2y+z=1         iv

−2x−y−z=0        

Add (iii) & (iv) x+y=1 or x+x ,x=1/2

From Q, y=x=12

From (iv) z=−2x−y=−2(12)−12=−32

Put in (i) Q=kG1/2h1/2c−3/20

Q=kGhc^3

Taking k=1 and putting the standard values : G=6.67×10^−11 SI units.

h=6.63×10^−34-sec

c=3×10^8m/s , we get

Q≅ [tex]10^{-35}[/tex] m

This length is called Planck's length.

Learn more about Planck's length here :

https://brainly.com/question/857839

#SPJ4

All the correct statements are,

''Murphy charges $10 more than Nicki to rake leaves in a yard for 4 hours.''

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

Murphy charges a $15 service fee and $10 per hour to rake leaves in a yard.

And, The equation y = 5x+25 represents the amount Nicki charges in dollars for x hours of leaf raking per yard.

Now, The equation to represents the amount Murphy charges in dollars for x hours of leaf raking per yard is,

⇒ y = 10x + 15

And, The equation represents the amount Nicki charges in dollars for x hours of leaf raking per yard is,

⇒ y = 5x + 25

Now, For 2 hours;

The amount Murphy charges in dollars for 2 hours of leaf raking per yard is,

⇒ y = 10x + 15

⇒ y = 10×2 + 15

⇒ y = 20 + 15

⇒ y = $35

And, the amount Nicki charges in dollars for 2 hours of leaf raking per yard is,

⇒ y = 5x + 25

⇒ y = 5×2 + 25

⇒ y = 10 + 25

⇒ y = 35

Thus, Nicki charges is equal to the Murphy to rake leaves in a yard for 2 hours.

Now, For 4 hours;

The amount Murphy charges in dollars for 4 hours of leaf raking per yard is,

⇒ y = 10x + 15

⇒ y = 10×4 + 15

⇒ y = 40 + 15

⇒ y = $55

And, the amount Nicki charges in dollars for 4 hours of leaf raking per yard is,

⇒ y = 5x + 25

⇒ y = 5×4 + 25

⇒ y = 20 + 25

⇒ y = 45

Thus, Murphy charges $10 more than Nicki to rake leaves in a yard for 4 hours.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ1

The complete question is this,

Murphy charges a $15 service fee and $10 per hour to rake leaves in a yard. The equation y = 5x + 25 represents the amount Nicki charges in dollars for 2 hours of leaf raking per yard. Which statement is true?

1) Nicki charges $10 more than Murphy to rake leaves in a yard for 2 hours.

2) Murphy charges $10 more than Nicki to rake leaves in a yard for 4 hours.

3)  Nicki always charges more per yard than Murphy, regardless of how many hours it takes.

4) Murphy always charges more per yard than Nicki, regardless of how many hours it takes.

Alma's total intake in a month is 0.0738 mol.

What is weight ?

the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.

To calculate the number of moles of ascorbic acid, we need to know its molecular weight. The molecular weight of ascorbic acid (C6H12O6) is approximately 176 g/mol.

Therefore, 13.00 g of ascorbic acid is equal to 13.00 g / 176 g/mol = 0.0738 mol.

So, Alma's total intake in a month is 0.0738 mol.

To learn more about weight visit : brainly.com/question/10069252

#SPJ4

The total intake of ascorbic acid in her in a month is 0.0738 mol prescribed by her doctor.

A thing's weight is the amount of force that gravity applies to it. In many widely used textbooks, the term "weight" refers to the gravitational force acting on the object. Weight is sometimes referred to as a scalar quantity that gauges the strength of the gravitational pull.

To calculate the number of moles, we need to know the ascorbic acid's molecular weight. The molecular weight of ascorbic acid (C6H12O6) is about 176 g/mol.

This indicates that 13.00 g of ascorbic acid divided by 176 g/mol equals 0.0738 mol of ascorbic acid.

Therefore, Alma's total monthly intake is 0.0738 mol.

To learn more about weight visit:

brainly.com/question/10069252

#SPJ4

The trimming to put around the edges of the tablecloth,

A-At = 4069.44 - 2826 =  1243.44 inches square.

The area of a circle is calculated from the radius and the value of the irrational number.

The problems where the formula for calculating the area of a circle is applied are very diverse in science and engineering.

We know that 1 ft equals 12 inches, therefore 5 ft is 60 inches,

let r be the radius of the table

r=60/2=30 inches.

the area of the table is-

[tex]A_t=\pi r^2\\\\=(30)^2(3.14)\\\\=2826\ inches^2[/tex]

Let R be the radius of the tablecloth,

R=30+6=36

The area of the tablecloth is-

[tex]A=R^2\pi\\\\=4069.44\ inch^2\\[/tex]

The trimming to put around the edges of the tablecloth,

A-At= 4069.44-2826

      =  1243.44 inches square.

learn more about Area,

https://brainly.com/question/27683633

#SPJ4

Answer: It should be you lost 2.8 million dollars

Step-by-step explanation:

The exponent that makes the equation 3^x = e true is x = log(e) / log(3).

A mathematical function called an exponential function is applied in numerous instances in the real world. It is mostly used to calculate investments, model populations, and do other tasks like determining exponential growth or decay.

x = log(e) / log(3) is the exponent that ensures the truth of the equation 3^x = e, where log is the natural logarithm.

In general, if y = logb(x) then x = b^y. The natural logarithm (base e) is a special logarithm that helps us solve exponential equations.

To learn more about exponent here:

https://brainly.com/question/5497425

#SPJ4

The options (A), (D), and (E) are the linear transformations

A transformation is a mathematical operation that takes an input and maps it to an output. A linear transformation preserves the properties of vector addition and scalar multiplication.

In other words, if T is a linear transformation and v and w are vectors, then T(v + w) = T(v) + T(w) and T(cv) = cT(v).

For the transformations given in the question:

A. The transformation T defined by T(r1,r2) = (4r1 - 2r2, 3r2) is a linear transformation.

B. The transformation T defined by T(r1, r2) = (2r1 + 3r2, ar1 + 4, 5r2) is not a linear transformation, as the addition property is not preserved.

C. The transformation T defined by T(r1, r2) = (r1, 0, 3) is not a linear transformation, as the scalar multiplication property is not preserved.

D. The transformation T defined by T(r1, r2, r3) = (1, r2, 3) is a linear transformation.

E. The transformation T defined by T(r1, r2, r3) = (r1, r2, r3) is a linear transformation.

Here we have to note that r1, r2, r3 are scalar values.

To know more about Transformation here.

https://brainly.com/question/11709244

#SPJ4

Rectangle is the name given to a parallelogram whose neighboring sides are perpendicular to one another. Weeding the rectangle area will cost 0.0042 GHCO.

A. The perimeter of a rectangular plot of land whose length is (2x+5) and width is (x-10) is 80cm. Therefore, we can write,

Perimeter of the rectangle = 2(L+W)

80 = 2[(2x+5)+(x-10)]

80/2 = 2x+5+x-10

40 = 3x -5

40+5 = 3x

x = 15

Hence, the value of x is 15.

B. The rectangle's length is (2x+5) = 2(15)+5 = 35 cm or 0.35 meters.

The rectangle's width is (x-10) = 15-10 = 5 cm = 0.05 m.

The rectangle's area is now LB = 0.35 m 0.05 m = 0.0175 m2.

C. Given that weeding 1 m2 costs 0.24, the price to weed the rectangular area is

Cost is 0.0175 x 0.24 x 0.0042 GHCO.

The price to weed the rectangular plot is therefore 0.0042 GHCO.

To learn more about rectangle refer to:

https://brainly.com/question/24316006

#SPJ4

Answer:Simon gives 5 cakes to Sali and 30 x 10% = 3 cakes to Jane, so he gives out a total of 5 + 3 = 8 cakes.

Therefore, Simon has 30 - 8 = 22 cakes left.

So, the fraction of the 30 cakes that Simon has left is 22/30

Step-by-step explanation:

Speed of the slower plane = 350 miles/hour

Relative speed is the speed of a moving body in relation to another. When two bodies are moving in the same direction, their difference is used to calculate their relative speed. When two bodies are moving in opposite directions, however, the relative speed is derived by summing their speeds.

Given,

Two planes heading opposite directions

After 2 hours the planes are 1500 miles apart.

Speeds of the planes differ by 50 mph

Let the speed of slower plane be x

then speed of faster plane = x + 50

Since, plane are moving in opposite directions

Relative speed = x + x + 50

Speed = distance /time

x + x + 50 = 1500/2

2x + 50 = 750

2x = 750 - 50

x = 700/2

x = 350 miles/hour

Hence, 350 miles/hour is the speed of slower plane.

Learn more about relative speed here:

https://brainly.com/question/14362959

#SPJ1

The angle x° =( y+z )° using parallel lines theorem

parallel lines are coplanar infinite straight lines that do not intersect at any point. Parallel planes are planes in the same three-dimensional space that never meet.

When a line is used to cross 2 parallel lines, angles are formed and these angles are equal based on some properties.

To prove that x° = (y+z)°

Bisect angle x° into two equal part x1 and x2

y = x1 ( alternate angles are equal)

z = x2 ( corresponding angles are equal)

x1+x2 = x

since x1 = y and x2 = z

we can therefore say x1+x2 = y+z

y+z = x

x° = (y+z)°

learn more about parallel lines from

https://brainly.com/question/24607467

#SPJ1

The area of the trapezoid is A = 1,10,622 miles²

The Trapezoid is a 4 sided polygon. Two sides of the shape are parallel to each other and they are termed as the bases of the trapezoid. The non-parallel sides are known as the legs or lateral sides of a trapezoid.

There are three types of trapezoids , and those are given below:

a) Isosceles Trapezoid

b) Scalene Trapezoid

c) Right Trapezoid

The area of the Trapezoid is given by

Area of Trapezoid = ( ( a + b ) h ) / 2

where , a = shorter base of trapezium

b = longer base of trapezium

h = height of trapezium

Given data ,

Let the area of the trapezoid be represented as A

Now , the shorter base of the trapezoid a = 205 miles

The longer base of the trapezoid b = 511 miles

The height of the trapezoid h = 309 miles

Now , the Area of Trapezoid = ( ( a + b ) h ) / 2

Substituting the values in the equation , we get

Area of Trapezoid A = ( ( 205 + 511 ) x 309 ) / 2

On simplifying the equation , we get

Area of Trapezoid A = 358 x 309

Area of Trapezoid A = 1,10,622 miles²

Hence , the area of the state is 1,10,622 miles²

To learn more about trapezoid click :

https://brainly.com/question/12221769

#SPJ1

Answer:

20 Aussies

Step-by-step explanation:

20% times 5 = 100%

4 times 5 = 20 Aussies

So, there are 20 Aussies in a group.

Answer:

20

Step-by-step explanation:

4/20%

4/[tex]\frac{2}{10}[/tex]

4 x [tex]\frac{10}{2}[/tex] = [tex]\frac{40}{2}[/tex] = 20

The expression to represent the membership cost of Platinum Gym for x

months is y  = 60 + 20x.

The expression to represent the membership cost of Super Fit for x months is y = 150 + 10x.

Yes, there is a membership period where they will pay the same amount.

The membership period will be 9 months and the cost is 240 dollars.

Tom and his best friend, Edward, are seeking to join a gym. . Tom saw on television that Platinum Gym was having a grand opening in a few months and is considering a membership there.

Platinum Gym charges a one-time registration fee of $60, and membership is $20 monthly.

Tom's best friend, Edward, says he plans to join Super Fit because it only charges $10 monthly with a one-time registration fee of $150.

a.

The expression to represent the the membership cost of Platinum Gym for x months is as follows:

y  = 60 + 20x

where

b.

The expression to represent the membership cost of Super Fit for x months is as follows:

y = 150 + 10x

c.

The membership period for them to pay the same amount can be calculated as follows:

60 + 20x = 150 + 10x

60 - 150 = 10x - 20x

-90 = -10x

x = 90 / 10

x = 9 months

Therefore, the period is 9 months

y = 150 + 10(9)

y = 150 + 90

y = 240 dollars

Therefore, at 9 month they will pay 240 dollars.

learn more on expression here: https://brainly.com/question/11285768

#SPJ1