percent to be found

Question

A restaurant has a 15% mandatory tip rate.

(a) Complete the ratio table shown. Show your work.

Pre-Tax Bill ($): 10 __ 60 __

Tip ($) __ 12 __ 15

(b) Using the table, how can you find the total tip paid on $70?

Answer 1

$10, $80, $60, $100 bill

$1.50, $12, $9, $15 tip

since $70 is midway between $80 and $60

the tip will be midway between $12 and $9

which is $10.50