Mariahs earnings rate can be described in dollars per hour or hours per dollar. Mariah earns $10 for each hour she works at a movie theater. State this rate in two different ways, and describe the difference

Answer: 23

Step-by-step explanation:

Answer:

Look below

Step-by-step explanation:

Ok, you got a Quadrilateral with the side lengths 6, 9, 9, 12

The shortest of B is 2

Find the scale factor of the A to B

6 -> 2

6/2 = 3

Scale factor is 3

Now divide all the sides by scale factor

6/3, 9/3, 9/3, 12/3 = 2, 3, 3, 4

Add them all together to get the perimeter

2+3+3+4 = 12

Perimeter of B is 12

Answer:

Width = 5

Length = 13

Step-by-step explanation:

Area of a rectangle:

=> L x W = Area

After knowing this, we could find the factors of 65

=> 65 = 5 x 13, 1 x 65

So, the only way is 5 x 13.

So, Width = 5

     Length = 13

Let's check whether our answer is correct.

=> (3w - 2) * w  = 65

=> (3 (5) - 2) * 5 = 65

=> (15 - 2) * 5 = 65

=> 13 * 5 = 65

=> 65 = 65

So, our answer is correct.

Step-by-step explanation:

Given that the number of amoeba is 1

in 1 hour it divides to form 2

1 hour later (2 hours): 1 amoeba(forms 2), 1 amoeba(forms 2)= 4  

1 hour again(3 hours):   1=2,1=2,1=2,1=2 hence a total of 8 after 3 hours

Question and answers

1. How many amoebas are there after 1 hour

=2 amoebas

2. How many amoebas are there after 2 hours

=4 amoebas

3. Write an expression for the number of amoebas after 6 hours.

let the number of amoeba be y, and the time be n

so in 6 hours n= 6

[tex]y=2^n[/tex]

[tex]y= 2^6\\\\y= 64 amoebas[/tex]

Answer:

47

Step-by-step explanation:

298.45/6.35=47 its ez just some division

Answer:

47

Step-by-step explanation:

298.45/6.35= 47

Answer:

0.1, 0.15, 0.25, 0.5

Step-by-step explanation:

0.1, 0.15, 0.25 ,0.5

Please mark brainliest :) have a nice day

Answer:

2 real roots

Step-by-step explanation:

y = 4x2 - 16

Set equal to zero

0 = 4x2 - 16

Add 16 to each side

16 = 4x^2

Divide by 4

16/4 = 4x^2/4

4 = x^2

Take the square root of each side

sqrt(4) = sqrt(x^2)

±2 =x

There are 2 real roots

Answer:

24/35

Step-by-step explanation:

(I posted an explanation on your previous question explaining how to do these problems.  You can go read that if you want because my explanation applies to any question in this concept.)

Answer:

Step-by-step explanation:

Multiply through by 7 inorder to clear out the fraction

That's

We have

Multiply the terms in the bracket

That's

2x - 4 = 28x

Subtract 28x from both sides

We have

2x - 28x - 4 = 28 - 28x

Simplify

- 26x = 4

Divide both sides by - 26

That's

We have the final answer as

Hope this helps you

Answer:

a/b tends to an infinite value

Step-by-step explanation:

If If a is an arbitrary nonzero constant, and we are to look for a/b as b approaches zero, we can represent this statement using limits. The statement is expressed as:

[tex]\lim_{b \to 0} \dfrac{a}{b}[/tex]

Substituting b = 0 into the function

[tex]= \dfrac{a}{0} \\\\= \infty \\\\\lim_{b \to 0} \dfrac{a}{b} = \infty\\ \\\\[/tex]

Since the limits of a tends to infinity as b tends to zero hence we can conclude that If a is an arbitrary nonzero constant then a/b tends to infinity or is undefined as b approaches 0

Answer:

5/13

Step-by-step explanation:

number of female students who have an A: 5

total number of female students: 13

The probability that a student who has an A is a female is 3/8

Suppose that there are finite elementary events in the sample space of the considered experiment, and all are equally likely.

Then, suppose we want to find the probability of an event E.

Then, its probability is given as

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{n(E)}{n(S)}[/tex]

where favorable cases are those elementary events who belong to E, and total cases are the size of the sample space.

For two events A and B, by chain rule, we have:

[tex]P(A \cap B) = P(B)P(A|B) = P(A)P(B|A)[/tex]

where P(A|B) is probability of occurrence of A given that B already occurred.

We're specified a frequency table as:

                                                       Female                          Male

Has an A                                             3                                   5

Does not have an A                           8                                   13

We want to get P(Student is female if its given that student has an A).

Symbolically, we need P(Female | Has an A).

P(Student is female | Student has an A) = P(Student is female ∩ Student  has an A) / P(Student has an A)

Now, P(Student is female ∩ Student has an A) = n(Student is female∩ Student has an A) / n(all type of students) = 3/(3+5+8+13) = 3/29

Also, P(Has an A) =  n(has an A)/ n (All type of students) = n(has an A)/29

Since n(has an A) = number of students having A = females having A + males having A = 3+5 = 8

Thus,  P(Has an A) = 8/29

Thus, we get:

P(Female | Has an A) = P(Female ∩ Has an A) / P(Has an A) = [tex]\dfrac{3/29}{8/29} = \dfrac{3}{8}[/tex]

Thus, the probability that a student who has an A is a female is 3/8

Learn more about probability here:

brainly.com/question/1210781

Answer:

Step-by-step explanation:

To answer this question we need to first understand and compare it with the equation of straight line.

i.e [tex]y= mx+c[/tex]  which is the equation of line

where m= slope

           y= dependent variable

           x= independent variable

          c= intercept

Given

[tex]y= 25+5h[/tex]

comparing both expression we can see that

25 corresponds to c which is the intercept

The flat pays $25 represent the intercept.

Given that,

Based on the above information, the calculation is as follows:

y = mx + c

where m= slope

y= dependent variable

x= independent variable

c= intercept

And,

y = 25 + 5h

So it is an intercept

Learn more: https://brainly.com/question/20492533?referrer=searchResults

onde esta a altenaativas

Hey, there!!

Given that:

y = 3x.........(i)

[tex]y = {x}^{2} + 3x - 16.......(ii)[/tex]

Putting the value of y in equation (ii)

[tex] {3x}^{} = {x}^{2} + 3x - 16[/tex]

[tex] {x }^{2} - 16[/tex]=0

[tex]( {x)}^{2} - {4}^{2} = 0[/tex]

[tex](x + 4)(x - 4) = 0[/tex]

Therefore,

Either Or

(x+4)=0 (x-4)=0

x= -4 x= 4

so, x= (+ -)4

And if you wanna get value of y, just keep value of x in equation (i).

y= 3x

y= (3×4) or (3×-4)

y= 12 or -12

{As it is the quadratic equation it has two values. }

Hope it helps....

Answer:

  4 minutes 7 1/2 seconds

Step-by-step explanation:

For the train to completely cross the bridge, it must travel a distance equal to the sum of its own length and that of the bridge.

  time = distance/speed

  time = (1 +0.1) km/(16 km/h) = 1.1/16 h ≈ 0.06875 h

It will take the train 0.06875 hours, about 4 minutes 7 1/2 seconds, to cross the bridge.

Answer:  20,40,60,80,100

Step-by-step explanation:

The possible  numbers has be the multiples of 5 and 4 in other words the LCM.

The LCM of 5 and 4 are,

20,40,60, 80,100 ....

Answer:

Hey there!

Given Expression: 3m-4n

Substitute: 3(-2)-4(-3)

Solve: -6+12

Simplify: 6

6 should be your final answer.

Let me know if this helps :)

Answer:

Option B is the correct option.

Step-by-step explanation:

Given, m = -2 and n = -3

Given expression : 3m - 4n

If the value of variables of algebraic expressions are given, the value of the term it expression can easily obtained by replacing the variables with numbers.

Let's solve:

[tex] \sf{3m - 4n}[/tex]

Plug the values of m and n

[tex] \sf{ = 3 \times ( - 2) - 4 \times ( - 3)}[/tex]

Multiply

[tex] \sf{ = - 6 - ( - 12)}[/tex]

When there is a ( - ) in front of a parentheses, change the sign

[tex] \sf{ = - 6 + 12}[/tex]

Calculate

[tex] \sf{ = 6}[/tex]

Hope I helped!

Best regards!!

Answer: Irrational

Step-by-step explanation:

It cannot be expressed as a ratio of two integers

Answer:  Irrational

Step-by-step explanation: Irrational numbers are real numbers that, when expressed as a decimal, go on forever after the decimal and never repeat. Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers. ... When expressed as a decimal, irrational numbers go on forever after the decimal point and never repeat.

Hope this helps^^

Answer:

[tex]\Large \boxed{{n=5}}[/tex]

Step-by-step explanation:

10^2n-6 = 10,000

Make 10,000 with base 10.

10^2n-6 = 10^4

Cancel same bases.

2n-6 = 4

Add 6 to both sides.

2n = 10

Divide both sides by 2.

n = 5

Answer:

[tex]\huge\boxed{n = 5}[/tex]

Step-by-step explanation:

[tex]10^{2n-6} = 10,000[/tex]

Write 10,000 as a base of 10

[tex]10^{2n-6} = 10^4[/tex]

Comparing both sides , we get:

[tex]2n - 6 = 4[/tex]

Adding 6 to both sides

2n = 4+6

2n = 10

Dividing both sides by 2

n = 10 / 2

n = 5

Answer:5.9-6.2x

Step-by-step explanation:

a=1.4-2x

b=-0.2x+1.7

 3a+b

=3(1.4-2x)+(-0.2x+1.7)

=4.2-6x-0.2x+1.7

=4.2+1.7-6x-0.2x

=5.9-6.2x

Answer:

Step-by-step explanation:

3a + b

a = 1.4 - 2x

b = -0.2x + 1.7

3 ( 1.4 - 2x ) +  -0.2x + 1.7

= 4.2 - 6x - 0.2x + 1.7

= 4.2 + 1.7 - 6x - 0.2x ( by rearranging the like terms )

= 5.9 - 6.2 x

hope this helps

plz mark as brainliest!!!!!!!!

Answer:

A first-order polynomial best fits the given situation.

Step-by-step explanation:

The statement indicates a constant rate of change in a given time interval, so the model that best fits the given situation is a first-order polynomial model, which is a generalized form of a model with direct proportionality. That is:

[tex]T = T_{o} + r \cdot t[/tex]

Where:

[tex]T[/tex] - Current temperature, measured in Fahrenheit degrees.

[tex]T_{o}[/tex] - Initial temperature, measured in Fahrenheit degrees.

[tex]r[/tex] - Temperature rate of change, measured in Fahrenheit degrees per minute.

[tex]t[/tex] - Time, measured in minutes.

The statement describes the temperature rate of change, which is equal to:

[tex]r = \frac{5\,^{\circ}F}{20\,min}[/tex]

[tex]r = \frac{1}{4}\,\frac{^{\circ}F}{min}[/tex]

Answer:

t(g)= -4g + 20

Step-by-step explanation:

James is playing his favorite game at the arcade. After playing the game 3 times, he has 8 tokens remaining. He initially had 20 tokens, and the game costs the same number of tokens each time. The number tt of tokens James has is a function of gg, the number of games he plays

Solution

Let

g=No. of games James plays

t= No. of tokens James has.

Find the slope using

y=mx + b

Where,

m = Slope of line,

b = y-intercept.

Before James started playing the games, he has a total of 20 tokens.

That is, when g=0, t=20

After James played the games 3 times, he has 8 tokens left

That is, when g=3, t=8

(x,y)

(0,20) (3,8)

m=y2-y1 / x2-x1

=(8-20) / (3-0)

= -12 / 3

m= -4

Slope of the line, m= -4

y=mx + b

No. of tokens left depend on No. of games James plays

t is a function of g.

t(g)

t(g)= -4g + 20

Answer:

-4g + 20

Step-by-step explanation:

I did it on khan and this was right

Answer:

a) 55-42=13

b) 29-10=19

c) 65÷5=13

d) 72÷8=9

Let x be the speed of the first car in miles per hour. After 12 hours it will have gone 12x miles. The other car, driving east, has speed x+ 4. After 12 hours it will have gone 12(x+ 4) miles. Again by the Pythagorean theorem,

(12x)^2+(12(x+4)^2=600^2. Solve that equation for x.

Answer:

-5 -√8  or ≈ -7.83

Step-by-step explanation:

Solving the quadratic equation, to find its roots:

The smallest root is:

Answer:

Yes

Step-by-step explanation:

All numbers between 1 and 6 are intervals

Answer:

13/40

Step-by-step explanation:

5/8 - 3/10

get a common denominator of 40

5/8*5/5 - 3/10 *4/4

25/40 - 12/40

13/40

Answer:

13/40

Step-by-step explanation:

We can find the lowest common multiple of 8 and 10, so that the two fractions will have the same denominator.

The LCM of 8 and 10 is 40, so we can rewrite 5/8 as 25/40 by multiplying the numerator and denominator by 5, and rewrite 3/10 as 12/40 by multiplying the numerator and denominator by 4.

This makes the subtraction easier, as we find 25/40 - 12/40.

We get (25-12) / 40, or 13/40.

Answer:

o.593

Step-by-step explanation:

The required value of the decimal equivalent of the given fraction is 0.592.

A fraction is a number written in the form a / b, where a and b are integers and b ≠ 0.

The number a is called as the numerator and b is the denominator.

If the fractions have the same denominators then their numerators are added keeping the denominators as the same.

For fractions with different denominators the LCM of the denominators are taken then that is divided by the numerators of each fraction and the number obtained is multiplied to each of them to get the equivalent fraction.

The given fraction is 16/27.

In order to convert it into decimal divide 16 by 27 upto 3 decimal places to obtain,

16/27 = 0.592

Hence, the given fraction 16/27 can be written as decimal as 0.592.

To know more about fraction click on,

https://brainly.com/question/10354322

#SPJ2