Question

Donna got a prepaid debit card with $25 on it. For her first purchase with the card, she bought some bulk ribbon at a craft store. The price of the ribbon was 21 cents per yard. If after that purchase there was $21.22 left on the card, how many yards of ribbon did Donna buy?

Answer 1

Given data:

Initial amount of money: $25.00

Final amount of money: $21.22

Price of ribbon: $0.21 per yard

1. Find the money Donna spend in the craft store: Subtract the final amount of money from the initial amount of money:

`25.00-21.22=3.78`

2. Divide the result of step 1 by the price per yard of the ribbon:

`(3.78)/(0.21)*(100)/(100)=(378)/(21)`

Then, Donna bought 18 yards of ribbon