Riordan spent $144 on a windbreaker. He spent
19 of his remaining money on a dress. If he still had
49 of his money left, how much did he have at first?
Windbreaker |
Remaining amount |
|
Dress |
Left |
$144 |
1 |
8 |
5x2 |
4x2 |
9 u |
1 u |
8 u |
The amount that Riordan had left is the same. Make the numerators the same. LCM of 4 and 8 is 8.
4x29x2 of his money =
89 of his remaining money
818 of his money =
89 of his remaining money
Amount that Riordan spent on the windbreaker = 9 u
9 u = 144
1 u = 144 ÷ 9 = 16
Amount that Riordan had at first
= 18 u
= 18 x 16
= $288
Answer(s): $288