Kala stayed at the Shoreline Motel last night. The room cost $82 plus a tax of 11%.

Question

(a) Let x be the amount of tax for the room (in dollars). Using the values below, create a proportion that can be used to find x.

amount of tax

total cost

Answer 1

amount of tax = $82 * 11% = $82 * 0.11

total cost = $82 + amount of tax

Therefore, the proportion to find x is:

amount of tax/total cost = ($82 * 0.11)/($82 + amount of tax)