Elyse had
38 as much money as Esther. Elyse had $45 less than Esther. Elyse spent some money to buy a birthday present for her best friend. In the end, she had
19 as much money as Esther. How much did Elyse spend on the birthday present?
| |
Elyse |
Esther |
| Before |
3 u |
8 u |
| Change |
- ? |
|
| After |
1 p |
9 p |
Amount that Elyse had less than Esther
= 8 u - 3 u
= 5 u
5 u = 45
1 u = 45 ÷ 5 = 9
Amount that Elyse had at first
= 3 u
= 3 x 9
= $27
Amount that Esther had
= 8 u
= 8 x 9
= $72
The amount that Esther had at first and in the end remains the same.
8 u = 9 p
9 p = 72
1 p = 72 ÷ 9 = 8
Amount that Elyse had in the end
= 1 p
= $8
Amount that Elyse spent on the birthday present
= 27 - 8
= $19
Answer(s): $19
