Kimberly had
38 as much money as Olivia. Kimberly had $35 less than Olivia. Kimberly spent some money to buy a birthday present for her nephew. In the end, she had
14 as much money as Olivia. How much did Kimberly spend on the birthday present?
| |
Kimberly |
Olivia |
| Before |
3 u |
8 u |
| Change |
- ? |
|
| After |
1 p |
4 p |
Amount that Kimberly had less than Olivia
= 8 u - 3 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Amount that Kimberly had at first
= 3 u
= 3 x 7
= $21
Amount that Olivia had
= 8 u
= 8 x 7
= $56
The amount that Olivia had at first and in the end remains the same.
8 u = 4 p
4 p = 56
1 p = 56 ÷ 4 = 14
Amount that Kimberly had in the end
= 1 p
= $14
Amount that Kimberly spent on the birthday present
= 21 - 14
= $7
Answer(s): $7
