Question

Rose bought a new hat when she was on vacation. The following formula describes the percent sales tax Rose paid
b=t-c/c
where
t= total price Rose paid for the hat
c= cost of hat
b= Sales tax

Rewrite the formula to determine the total cost Rose paid for the hat.

Answer 1

Multiply both sides of the equation by c.
Gather all the c terms to the left and non-c terms to the right of the = sign.
See what division needs to be done to both sides to isolate c on the left side.

Answer 2

How, would I do that though?

Answer 3

b = (t - c) / c
Multiply both sides by c
bc = t - c
Add c to both sides
bc + c = t
Factor c out on the left
c(b + 1) = t
Divide both sides by (b + 1)
c = t / (b + 1)

Answer 4

Okay I get it now thank you!

Answer 5

you are welcome.