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Bill bought basketball shoes that were on sale for 20% off. The sale price was \(\$31.20\) . What was the regular price of the shoes?

Explanation

Since the discount was 20%, the sale price of \(\$31.20\) represents 80% of the regular price. Ask, "\(\$31.20\) is 80% of what amount?" To find the amount, divide \(\$31.20\) by 80%.

\(\$ 31.20 \div 80 \%=\$ 31.20 \div 0.8=\$ 39\)
The regular price of the shoes was \(\$39.00\).

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