Question

Estimate a 15% tip on a dinner bill of $87.68 by first rounding the bill amount to the nearest ten dollars.

Answer 1

Explanation:

$87.68 rounded to the nearest $10 amount, so the cost can be considered to be $90. 90 is an easier number to calculate the percent of, and 15% of 90, is 13.5. So, it would be a reasonable guess to say the tip will be about $13.50.