Hazel had 13 more cookies than Jaslyn at first. After Hazel ate 4 cookies, she had four times as many cookies as Jaslyn in the end. How many cookies did Jaslyn have?
| |
Jaslyn |
Hazel |
| Before |
1 u |
1 u + 13 |
| Change |
|
- 4 |
| After |
1 u |
1 u + 9 |
Comparing Jaslyn
and Hazel in the end |
1 u |
4 u |
The number of cookies that Jaslyn had remains unchanged.
Number of cookies that Hazel had in the end
= 4 x 1 u
= 4 u
4 u = 1 u + 9
4 u - 1 u = 9
3 u = 9
1 u = 9 ÷ 3 = 3
Number of cookies that Jaslyn had
= 1 u
= 3
Answer(s): 3
