Justin and Tommy had $107 at first. Justin spent $28 while Tommy spent $13 less than him. The amount Tommy had left was
35 of the amount Justin had left. How much did Justin have at first?
| |
Justin |
Tommy |
Total |
| Before |
3 u + 28 |
5 u + 15 |
107 |
| Change |
- 28 |
- 15 |
|
| After |
3 u |
5 u |
|
Amount that Tommy had spent
= 28 - 13
= $15
Total amount that Justin and Tommy had at first
= 3 u + 28 + 5 u + 15
= 8 u + 43
8 u + 43 = 107
8 u = 107 - 43
8 u = 64
1 u = 64 ÷ 8 = 8
Amount that Justin had at first
= 5 u + 28
= 5 x 8 + 28
= 40 + 28
= $68
Answer(s): $68
