Someone please answer this

Answer:

Ok so first you would have to turn them into improper fractions which is

3 [tex]\frac{1}{2\\}[/tex] = [tex]\frac{7}{2}[/tex] and 4 [tex]\frac{2}{5}[/tex] = [tex]\frac{22}{5}[/tex]

So now that you have made them both improper fractions you have to find common denominators.

To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take [tex]\frac{22}{5}[/tex] and mutiply both numbers by 2 and get [tex]\frac{44}{10}[/tex]. Then mutiply both numbers in [tex]\frac{7}{2}[/tex] by 5 to get a common denominator.

[tex]\frac{35}{10}[/tex]

[tex]\frac{35}{10} -[/tex] [tex]\frac{44}{10}[/tex] =35 - 44 = -9 so your answer is [tex]-\frac{9}{10}[/tex]

Step-by-step explanation:

Answer:

1: ounce- 64  pound- 4

2: ounce- 5 pound- 0.3125

3- ounce- 13 pound- 0.8125

4- ounce- 9000 pound- 562.5

5 ounce- 45 pound- 2.8125

Hope this helps

Step-by-step explanation:

1: ounce- 64  pound- 4

2: ounce- 5 pound- 0.3125

3- ounce- 13 pound- 0.8125

4- ounce- 9000 pound- 562.5

5 ounce- 45 pound- 2.8125

Hope this helps

Answer:

The congruence statement tells you that both angle B and angle E are equal, since the triangles are identical!

Step-by-step explanation:

We want to set the equations equal to each other.

2x+31=7x-24

We need to isolate our variable, which is X.

1. Add 24 to both sides.

New Equation: 2x+55=7x

2. Subtract 2x from both sides.

New Equation: 55=5x

3. Divide by 5 from both sides so X is alone!

New Equation: x=11

Enough said! :D

Answer:

x=7

Step-by-step explanation:

3(x+1)+5(x+1)=64

(3+5)(x+1)=64

8(x+1)=64

8x+8=64

8x=56

x=7

Answer:

x is 3

Step-by-step explanation:

because 3×2=6+2=8×8=64

Answer:

A

0.7838

Step-by-step explanation:

A is the right answer for this question.

0.7838

Hope this helps

Answer:

B

Step-by-step explanation:

29/37=0.783 783 783 8....

so it is just repeating

so the answer is b

(sorry about your computer :I)

Answer:

It will take 7 hours for car B to catch up to Car A.

Step-by-step explanation:

So if you write the the two equations out:

[tex]Car A=70x\\Car B= 90x-140[/tex]

You'll want to assume that x is how many hours and y is how many km.

The reason car B has, -140, is because car A is in front of it by two hours and in those two hours it reached 140km. Meaning that Car B is starting at 140 km behind Car A.

If you graph these two equations out you'll realize that they intersect at the point (7, 490). Meaning that Car B caught up with Car A after 7 hours and both cars had traveled 490km.

Answer:

258 increased by 43% = 368.94

368.94 - 258 = 110.94 as absolute change

Step-by-step explanation:

258 + Percentage increase =

258 + (43% × 258) =

258 + 43% × 258 =

(1 + 43%) × 258 =

(100% + 43%) × 258 =

143% × 258 =

143 ÷ 100 × 258 =

143 × 258 ÷ 100 =

36,894 ÷ 100 =

368.94; with 110.94 as absolute change.

The required simplified value is given as £368.94.

As given in the question, to determine an increase £258 by 43%.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Let the required value be x,
According to the question,
x = 258 [1.43]
x = 368.94

Thus, the required simplified value is given as £368.94.

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Answer:

The scale factor, r, determines how much bigger or smaller the dilation image will be compared to the preimage. k will always be a value that is greater than 0. Center Point The center point is the center of the dilation. You use the center point to measure the distances to the preimage and the dilation image.    

Step-by-step explanation:

so multiplication

Answer:

R=7n+9

Step-by-step explanation:

R=(N*7)+9

R=7n+9

Answer:

7n+9

Step-by-step explanation:

Answer:sorry i need points for my test

Step-by-step explanation:

Answer:

35 to 44 is the error interval

Answer:

69.84%

Step-by-step explanation:

percentage increase

[tex]\frac{107-63}{63} \times 100\\=\frac{44}{63} \times 100\\=\frac{4400}{63} \\=69.84/%[/tex]

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

Required percentage value = a

total value = b

Percentage = a/b x 100

The percentage increase in the height of the tree is 69.84%.

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,

Height of the tree = 63 inches.

Height after several years = 107 inches.

Now,

The percentage increase in the height of the tree.

= (107 - 63)/63 x 100

= 44/63 x 100

= 69.84%

Thus,

The percentage increase in the height of the tree is 69.84%.

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Answer:

1.  3

2. A

Step-by-step explanation:

1. (-3+3)^2 + (2 + 1)^2 - r^2 = 0

0 + 9 - r^2 = 0

r^2 = 9

r = 3

2. 2x^2 + 4x + 2y^2 + 12y = - 6

Divide by 2.

(x^2 + 2x) + (y + 6y) = -3

Remember how to complete the square..

(b/2)^2

So...

(2/2) ^ 2 = 1

(6/2) ^ 2 = 9

(x^2 + 2x + 1) + (y^2 + 6y + 9) = -3 + 1 + 9 <--- You must remember to add whatever you add on the left to the right!

Now.. rewrite in standard form..  

(x+1)^2 + (y+3)^2 = 7

Careful!! the circle equation is written as

(x - h)^2 + (y - h)^2 = r^2

Meaning that the radius is square root of 7. At center (-1, -3)

Answer:

4.5 meters

Step-by-step explanation:

you just add them 2.7 + 1.15 = 3.85 + 0.65 + 4.5

Answer:

4.5 m

Step-by-step explanation:

         2.7

       + 1.15

       + 0.65

       = 4.50 meters of ribbon

Hope this helps!

Answer:

[tex]x = 2[/tex]

Step-by-step explanation:

[tex]2x + 6 = 10 \\ 2x = 10 - 6 \\ 2x = 4 \\ \frac{2x}{2} = \frac{4}{2} \\ x = 2[/tex]

Answer:

x=2

Step-by-step explanation:

2x+6 = 10

Subtract 6 from each side

2x+6-6=10-6

2x= 4

Divide by 2

2x/2 = 4/2

x = 2

Answer:

.87 g/ mL

Step-by-step explanation:

Density = mass  over volume

We have a mass of 43.5 grams and a volume of 50 mL

Density = 43.5g / 50 mL

Density = .87 g/ mL

When two lines intersect at 90° degrees angle, the lines are perpendicular to each other. Two perpendicular lines, their slope will give a product of -1

i.e. if the first's line slope is 5, then the second line's will be -1 ÷ 5 = -¹/₅

To find the slope of a line, we divide the vertical distance by the horizontal distance. 

We'll use the trial and error method to find the right pairing

Let's start with A(3, 3) and B(12, 6)

Vertical distance = 

Horizontal distance = 

The slope AB = ³/₉ = ¹/₃

We want BC to have a slope -1 ÷ ¹/₃ = -3

Try C(16, -6); check the slope with B(12, 6)

Vertical distance = 

Horizontal distance = 

Slope of BC = -12 ÷ 4 = -3

The slope BC = -3 is the value we want so, tile 1 pair with tile 4

-------------------------------------------------------------------------------------------------------------

Let's do A(-10, 5) and B(12, 16)

Vertical distance = 16 - 5 = 11

Horizontal distance = 12 - -10 = 22

Slope AB = ¹¹/₂₂ = ¹/₂

The perpendicular slope would be -1 ÷ ¹/₂ = -2

Try C(18, 4)  with B(12, 16)

Vertical distance = 16 - 4 = 12

Horizontal distance = 12 - 18 = -6

Slope BC = ¹²/₋₆ = -2

Slope BC and slope AB perpendicular, so tile 3 matches with tile 6

--------------------------------------------------------------------------------------------------------------

Let's try A(12, -14) and B(-16, 21)

Vertical distance = 21 - -14 = 35

Horizontal distance = -16 - 12 = -28

The slope AB = ³⁵/-₂₈ = ⁵/₋₄

We need the perpendicular slope to be -1 ÷ -⁵/₄ = ⁴/₅

Try C(-11, 25)

Vertical distance with B = 25 - 21 = 4

Horizontal distance with B = -11 - -16 = 5

The slope = ⁴/₅

Tile 7 matches tile 8

--------------------------------------------------------------------------------------------------------------

Take A(-12, -19) and B(20, 45)

Vertical distance = 45 - -19 = 64

Horizontal distance = 20 - -12 = 32

Slope AB = ⁶⁴/₃₂ = 2

We need the perpendicular slope to be -1 ÷ 2 = -¹/₂

We have C(6, 52) and checking the slope with B(20, 45)

Vertical distance = 45 - 52 = -7

Horizontal distance = 20 - 6 = 14

The slope is ⁻⁷/₁₄ = -¹/₂

Tile 9 pairs with tile 2

-----------------------------------------------------------------------------------------------------------

Conclusion

Tile 1 ⇒ Tile 4

Tile 3 ⇒ Tile 6

Tile 7 ⇒ Tile 8

Tile 9 ⇒ Tile 2

Tile 5 and Tile 10 do not have pairs

Answer:

2x=-1 or x=-0.5

Step-by-step explanation:

4x-6=10x-3   (-4x)

-6=6x-3   (+3)

-3=6x   (divide by 3)

-1=2x

Answer:

Its A  x - 55 = 39

Step-by-step explanation:

x - 55 = 39

x = 39 + 55

x = 94

This is correct as they sold 39 and kept 55

This means they had 94 to begin with.

I hope this helps ^_^

it's 3,780

Step-by-step explanation:

i took a test on it and got it right

Step-by-step explanation:

56,700 ÷ 15 =

= 56,700/15

÷5 both upper and lower

= 11,340/3

= 3780

Answer:

$12

Step-by-step explanation:

116 is the total

116 minus 24

92 divided by 8

Answer: $11.50

Step-by-step explanation:116 - 24 equals 92

and 92 / 8 equals 11.50

Answer:

The answer is "8".

Step-by-step explanation:

Let the number are a, b, c then value is as follows:

a= 3

b= 5

c= 7

The addition of equation ⇒ a+b+c =15....................(i)

multiply by the value ⇒ 3a + 5b + 7c = 75 ...............(ii)

let b= 15-a-c which  subtract from equation (ii)  

equation:

 ⇒ 3a + 5b + 7c = 75

⇒ 3a + 5(15-a-c) + 7c = 75

⇒ 3a +75-5a-5c+7c = 75

⇒ 3a -5a-5c+7c  = 75-75

⇒ -2a + 2c  = 0

⇒ 2(c-a)  = 0

⇒ (c-a)  = 0

⇒ c=a

if we put value in between 0 to 7 from it satisfies the two equations, with c=a and b = 15 - a - c. So, the correct answer is 8.

Answer:

Density: 1.6g/cm^3

Step-by-step explanation:

Density = mass/volume

Mass: 12.9g

Volume: 8cm^3

12.9/8 = 1.6125

Rounded to tenths place.

1.6 grams/cm^3

Answer:

1.61 g/cm³

Step-by-step explanation:

Density is measured as the mass divided by the volume:

d = m / v, where d is the density, m is the mass, and v is the volume

Here, our mass is 12.9 g and our volume is 8 cm cubed, so plug these in:

d = m / c

d = 12.9 g / 8 cm³

d = 1.6125 ≈ 1.61 g/cm³

The density is 1.61 g/cm³.

Answer:

B. A display of points that shows the relationship between two sets of data.

Step-by-step explanation:

Answer:

I think the answer is B.

Step-by-step explanation:

That's what I know, match it up with the answer.

a graph in which the values of two variables are plotted along two axes, the pattern of the resulting points revealing any correlation present.

Answer:

6782.4 m^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

where r is the radius and h is the height

V = 3.14 * 12^2 * 15

  = 6782.4 m^3

Answer:

1. (3, 5)

2. (1/2, 4)

Step-by-step explanation:

To find the coordinates of the midpoint of a segment, find the average of the x-coordinates of the endpoints and the average of the y-coordinates of the endpoints.

1. (1, 2) and (5, 8)

x-coordinate of midpoint = (1 + 5)/2 = 6/2 = 3

y-coordinate of midpoint = (2 + 8)/2 = 10/2 = 5

Midpoint: (3, 5)

2. (0, 1) and (1, 7)

x-coordinate of midpoint = (0 + 1)/2 = 1/2

y-coordinate of midpoint = (1 + 7)/2 = 8/2 = 4

Midpoint: (1/2, 4)

The expression has a value that is 6 times the value of the expression 63 – 3y would be, 6 × (63 - 3y)

The correct answer is option (D)

"An expression is a sentence with a minimum of two numbers and at least one mathematical operation in it."

For given example,

We need to find the value that is 6 times the expression 63 – 3y.

If we write it as an expression then it would be,

6 × (63 - 3y)

Therefore, the correct answer is option (D)

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Answer:

3 cups

Step-by-step explanation:

the original recipe calls for 6 cups of flour (3 times as much as sugar. sugar is 2 cups, times 3 is 6)

half it: 6/2 = 3

Answer:

3 cups of flour.

Step-by-step explanation:

If sugar is twice as much as butter, we need 2 cups of sugar.

If flour is 3 times as much as sugar, we'll need 6 cups.

Half of 6 is 3.

Answer: 23%

Step-by-step explanation:

Answer:

to the person that answered before me, everyone would really love and explanation, not just a percentage, thanks anyways !!

good day loves !! <3

Step-by-step explanation:

but the answer is 23 %

Answer:

a co mam zrobic!!!!!!!!!!!!!!!

bo nie wiem!!!!!!!!!!!!

Step-by-step explanation: