3 sisters, Kimberly, Jen and Erika, paid a total of $198 for a gift. Kimberly paid
14 of what the others paid. Jen paid
18 of what the others paid. How much did Erika pay?
| Kimberly |
Erika |
Jen |
Total |
| 1x9 |
4x9 |
5x9 |
| 8x5 |
1x5 |
9x5 |
| 9 u |
31 u |
5 u |
45 u |
Total cost of the gift = 45 u
45 u = 198
1 u = 198 ÷ 45 = 4.40
Amount that Erika paid
= 45 u - 9 u - 5 u
= 31 u
= 31 x 4.40
= $136.40
Answer: $136.40
