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3 years ago

14

A mechanic charges $75 per hour for her services and $60 for the initial call. What is the dependent variable in the situation?

1 answer:

tresset_1 [31]3 years ago

8 0

Answer:

The amount of hours it takes for the service to be completed

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nirvana33 [79]

Answer:

$6 per carton.

Step-by-step explanation:

$54 divided by 9= $6

5 0

2 years ago

125% of what number is 25

Mazyrski [523]

We can create a equation to find out.

since we are finding a number where when multiplied by 1.25(this is the decimal form of the percentage) gives us 25, we know that the number we are finding is less than 25. here is the equation.

1.25(x)=25

divide both sides by 1.25 to get "x" alone.

x= 20

5 0

2 years ago

Read 2 more answers

Mallory makes $10 per hour babysitting and $8 per hour working at the local grocery store. Last week she babysat for 6 hours. He

Aneli [31]

10x6=60 so 180-60=120 and 120 divided by 8 is 15 so the answer is 15 hours

6 0

2 years ago

Read 2 more answers

F(x) = 4x+3x<br> g(x) = 2x-5<br> 7. Find (f+9) (x) <br> 8. Find (f - g) (x)

notka56 [123]

Answer:

7. $(f+g)(x) = 6x - 2$

8. $(f-g)(x) = 2x + 8$

Step-by-step explanation:

We are given two function, f(x) and g(x).

We want to find their addition and their subtraction, and we do this combining like terms.

The functions are:

$f(x) = 4x + 3$

$g(x) = 2x - 5$

7. Find (f+9) (x)

$4x + 3 + 2x - 5 = 4x + 2x + 3 - 5 = 6x - 2$

So

$(f+g)(x) = 6x - 2$

8. Find (f - g) (x)

$4x + 3 - (2x - 5) = 4x + 3 - 2x + 5 = 4x - 2x + 3 + 5 = 2x + 8$

So

$(f-g)(x) = 2x + 8$

3 0

2 years ago

If the customer rolls the dice and rents a second movie every Thursday for 20 consecutive weeks, what is the total amount that t

VMariaS [17]

Answer:

The expected amount for a duration of 20 weeks is $9.4

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Step-by-step explanation:

Read attachment to understand the complete question

From the question, we have the following given parameters:

x = Amount paid for a second movie

$E(x) = 0.47$ --- Expected value of x

$SD(x) = 0.15$ --- Standard deviation of x

Required

Determine the total amount paid for a second movie for 20 weeks

The required implies that we calculate the expected value for a duration of 20 weeks.

i.e.

$n = 20$

If

$E(x) = 0.47$

Then:

$E(nx) = n * E(x)$

Substitute 20 for n

$E(20x) = 20 * E(x)$

Substitute 0.47 for E(x)

$E(20x) = 20 * 0.47$

$E(20x) = 9.4$

<em>Hence, the expected amount for a duration of 20 weeks is $9.4</em>

6 0

2 years ago