The function for the cost of materials to make a hat is f(x) = one half x + 1, where x is the number of hats. The function for the selling price of those hats is g(f(x)), where g(x) = x + 2. Find the selling price of 10 hats.

a: 6

b: 8

c: 10

d: 12

i did the problem but my answer was wayyyyyyy off . someone show me how to solve and what the correct answer is ?

Question

The function for the cost of materials to make a hat is f(x) = one half x + 1, where x is the number of hats. The function for the selling price of those hats is g(f(x)), where g(x) = x + 2. Find the selling price of 10 hats.

 a: 6

 b: 8

c: 10

 d: 12

i did the problem but my answer was wayyyyyyy off . someone show me how to solve and what the correct answer is ?

anonymous · Answer

x + 2
^ plug in   .5x+1  here aka price of hat

anonymous · Answer

from the above i got
( .5x+1)+2
 
Then you plug in 10 hats

( .5*10+1)+2=8

anonymous · Answer

@timo86m  thank you
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anonymous · Answer

I kept getting 7