A book rental shop rented out books and the rate of rental charges are shown in the table.
Number of days |
Rates |
After the first 6 days |
30 cents a day |
After 6 days |
50 cents a day |
Wesley rented 3 books and was charged $17.40. How many days did he rent the books for?
$1 = 100¢
$17.40 = 17.40 x 100 = 1740¢
Amount that Wesley paid for each book
= 1740 ÷ 3
= 580¢
Amount that Wesley paid for each book for renting for the first 6 days
= 6 x 30
= 180¢
Additional amount that Wesley paid for each book for renting for additional days
= 580 - 180
= 400¢
Number of additional days that Wesley rented for each book
= 400 ÷ 50
= 8
Total number of days that Wesley rented the books
= 6 + 8
= 14
Answer(s): 14