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3 years ago

the cost in dollars of a one day car rental is given by C=25+0.15x where x is the number of miles driven

Mathematics

1 answer:

AveGali [126]3 years ago

3 0

What do you want? It isn't a question but a statement

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Explain how you decide wether to multiply or divide by 3 if you need to convert yards to feet.

Valentin [98]

Answer:

Step-by-step explanation:

Converting yards to feet means that we want the label of yards to cancel, leaving feet as our label. Use the factor-label method taught in chemistry.

$???yds *\frac{3feet}{1yd}$

The yards label cancels out, leaving feet as our label. So to answer the question, in order to convert from yards to feet you are multiplying by 3.

6 0

3 years ago

Lf f(x) = 5x, what is f^-1(x)?

Nonamiya [84]

Answer: $f^{-1}(x)=\frac{x}{5}$

Step-by-step explanation:

By definition the domain of an inverse function $f^-1(x)$ is the range of f(x) and the range of the inverse function is equal to the domain of the principal function f(x).

If you have a function $f(x)=5x$ , then to find the inverse function, follow these steps:

1. Make $y=f(x)$

$f(x)=y=5x$

$y=5x$

2. Solve for the variable "x":

$x=\frac{y}{5}$

3. Exchange the variable "x" with the variable "y":

$y=\frac{x}{5}$

4. Exchange "y" with $f^{-1}(x)$ . Then the inverse function is:

$f^{-1}(x)=\frac{x}{5}$

7 0

3 years ago

Which ordered pair is a solution of the equation? 5x-2y=18

irakobra [83]

Answer:

(2, -4)

Step-by-step explanation:

I did some research.

Plz click the Thanks button!

<Jayla>

3 0

3 years ago

Read 2 more answers

This week, Maria ate 60%, or 420 grams, of a jumbo

bearhunter [10]

Answer:

0.4 is left in the box

Step-by-step explanation:

1.00 = jumbo box of cereal

1.00-60%= 1-0.6=0.4

3 0

3 years ago

B2 - 7b + 12 = 0

olga_2 [115]

B2-7b+12=0
(b-3)(b-4)=0
b= 3 or 4

6 0

3 years ago

Read 2 more answers