Jane had $375 less than Kimberly. Kimberly spent 0.8 of her money and Jane spent 30% of her money. In the end, Kimberly and Jane had the same amount of money left. Find the amount of money that Kimberly had at first.
| |
Jane |
Kimberly |
Comparing Kimberly
and Jane at first |
|
375 more |
| Before |
10x1 =
10 u |
5x7 =
35 u |
| Change |
- 3x1 =
- 3 u |
- 4x7 =
- 28 u |
| After |
7x1 =
7 u |
1x7 =
7 u |
0.8 =
810 =
45 30% =
30100 =
310 Jane and Kimberly had the same amount of money in the end. Make the amount that each had in the end the same. LCM of 1 and 7 is 7.
Amount that Jane had less than Kimberly at first
= 35 u - 10 u
= 25 u
25 u = 375
1 u = 375 ÷ 25 = 15
Amount that Kimberly had at first
= 35 u
= 35 x 15
= $525
Answer(s): $525
