Kimberly had 5 times as many erasers as Joelle at first. After Kimberly gave 20 erasers to Joelle, they each had the same number of erasers in the end. How many erasers did Joelle have in the end?
| |
Kimberly |
Joelle |
| Before |
5 u |
1 u |
| Change |
- 20 |
+ 20 |
| After |
5 u - 20 |
1 u + 20 |
Comparing Kimberly and
Joelle in the end |
1 |
1 |
The number of erasers that Kimberly and Joelle had in the end is equal.
5 u - 20 = 1 u + 20
5 u - 1 u = 20 + 20
4 u = 40
1 u = 10
Number of erasers that Joelle had in the end
= 1 u + 20
= 10 + 20
= 30
Answer(s): 30
