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Deirdre works for a moving company. Her job includes giving clients a price for their move. Deirdre
= 4r which gives the number of hours h to pack up a number of rooms r. She has
second function, c(h) = 40h, that gives the price c for the number of hours of packing h.
What is the function that gives the price e for a number of rooms r?
function, h(r)
c(r) = 160r
c(r) = 40r +4
c(r) =36r
c(r) = 10r

Respuesta :

Given:

The function for the number of hours h to pack up a number of rooms r is

[tex]h(r)=4r[/tex]

The function for the price c for the number of hours of packing h is

[tex]c(h)=40h[/tex]

To find:

The function that gives the price c for a number of rooms r.

Solution:

From the function [tex]h(r)=4r[/tex], we get the number of hours to pack up a number of rooms r.

From the function [tex]c(h)=40h[/tex], we get the price for the number of hours of packing h.

Now, to find the price  for number of rooms r, substitute the value of h in [tex]c(h)=40h[/tex] from function [tex]h(r)=4r[/tex].

[tex]c(h(r))=40(4r)[/tex]

[tex]c(r)=160r[/tex]

Therefore, the correct option is A.

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