Kathy and Kimberly had the same amount of money at first. After Kathy gave $540 to her nephew, Kimberly had 7 times as much money as Kathy. How much did Kathy have in the end?
| |
Kathy |
Kimberly |
| Before |
1x7 =
7 u |
1x7 =
7 u |
| Change |
- $540 |
|
| After |
1 u |
7 u |
The amount that Kimberly had at first and in the end remains unchanged. Make the amount that Kimberly had the same. LCM of 1 and 7 is 7.
Amount that Kathy gave to her nephew
= 7 u - 1 u
= 6 u
6 u = 540
1 u = 540 ÷ 6 = 90
Amount that Kathy had in the end
= 1 u
= $540
Answer(s): $540
