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A store is having a sale where school suplies are 30% off their original price.A backpack is on sale for $11.20 What was the original price of the backpack?​

Respuesta :

MrsStrong

Answer:

$16

Step-by-step explanation:

If you received 30% off then you paid 70% of the price. To find the original price, write a proportion.

[tex]\frac{70}{100}=\frac{11.20}{y}[/tex]

To solve cross multiply.

70y = 1120

y= 16

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