Emily had
49 as much money as Tina. Emily had $35 less than Tina. Emily spent some money to buy a birthday present for her buddy. In the end, she had
17 as much money as Tina. How much did Emily spend on the birthday present?
| |
Emily |
Tina |
| Before |
4 u |
9 u |
| Change |
- ? |
|
| After |
1 p |
7 p |
Amount that Emily had less than Tina
= 9 u - 4 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Amount that Emily had at first
= 4 u
= 4 x 7
= $28
Amount that Tina had
= 9 u
= 9 x 7
= $63
The amount that Tina had at first and in the end remains the same.
9 u = 7 p
7 p = 63
1 p = 63 ÷ 7 = 9
Amount that Emily had in the end
= 1 p
= $9
Amount that Emily spent on the birthday present
= 28 - 9
= $19
Answer(s): $19
