Answer:
$33.50
Step-by-step explanation:
To find the original purchase price, write a proportion and solve.
A proportion is an equation where two ratios are set equal.
[tex]\frac{6.70}{y}= \frac{20}{100}[/tex]
To solve for y, cross multiply the numerator and denominator of each fraction.
6.70(100) = 20y
670 = 20y
33.5 = y
