Gabriela bought a new pair of glasses at the store when they were having a $30 \%$ off sale. $\newline$ If the regular price of the pair of glasses was $\$ 72$ , how much did Gabriela pay with the discount? $\newline$ $\$$

Full solution

Q. Gabriela bought a new pair of glasses at the store when they were having a

30 \%

off sale.

\newline

If the regular price of the pair of glasses was

\$ 72

, how much did Gabriela pay with the discount?

\newline

\$

Calculate Discount Amount: To find out how much Gabriela paid for the glasses, we need to calculate the discount amount and subtract it from the regular price. $\newline$ First, we calculate the discount amount by multiplying the regular price by the discount percentage. $\newline$ Discount amount = Regular price $\times$ Discount percentage $\newline$ Discount amount = $\$72 \times 30\%$
Convert Percentage to Decimal: Now we convert the percentage into a decimal to perform the multiplication. $\newline$ $30\%$ as a decimal is $0.30$ . $\newline$ So, Discount amount = $\$72 \times 0.30$
Perform Multiplication for Discount Amount: Next, we perform the multiplication to find the discount amount. Discount amount = $\$72 \times 0.30 = \$21.60$
Subtract Discount Amount from Regular Price: Now we subtract the discount amount from the regular price to find out how much Gabriela paid. $\newline$ Price after discount = Regular price - Discount amount $\newline$ Price after discount = $\$72$ - $\$21.60$
Find Final Price: Finally, we perform the subtraction to find the final price Gabriela paid for the glasses. $\newline$ Price after discount = $\$72 - \$21.60 = \$50.40$