Question

on black friday, Kat bought some airpods and paid $137.39, including $8.39 tax. What percent tax did she pay?

Answer 1

ANSWER

She paid 6.5% tax

EXPLANATION

If Kat paid $137.39 including $8.39 tax, then the 100% of the value of the airpods is:

$137.39-8.39=129$

$129 is the total for the airpods. This is the 100%. We want to know what percentage of 120 is 8.39:

$8.39\times\frac{100}{129}=8.39\times0.7752=6.5$

The tax was 6.5%