Question

melissa got a prepaid debit card with $20 on it. for her first purchase with the card, she bought some bulk ribbon at a craft store. the price of the ribbon was $0.21 per yard. if after that purchase there was $17.69 left on the card, how many yards of ribbon did melissa buy?

Explanation:

Step1: Find the amount spent

The initial amount on the card is $20, and the remaining amount is $17.69. So the amount spent is $20 - $17.69 = $2.31.

Step2: Calculate the number of yards

The price per yard is $0.21. To find the number of yards, we divide the amount spent by the price per yard. So the number of yards \( n = \frac{2.31}{0.21} \).
Calculating this, \( \frac{2.31}{0.21} = 11 \).

Answer:

11