Aunt Wendy made 60 less cupcakes than cookies. After she gave 0.9 of the cupcakes and
25 of the cookies to Ivory, she was left with 131 less cupcakes than cookies. How many cookies did she make?
| |
Cupcakes |
Cookies |
Comparing cupcakes
and cookies at first |
|
60 more |
Before |
10 u |
5x2 + 60 =
10 u + 60 |
Change |
- 9 u |
- 2x2 - 24 =
- 4 u - 24
|
After |
1 u |
3x2 + 36 =
6 u + 36 |
Comparing cupcakes
and cookies in the end |
|
131 more |
0.9 =
910 25 x 60 = 24
Number of cookies that Aunt Wendy gave to Ivory = 4 u + 24
If Aunt Wendy made another 131 cupcakes in the end, the number of cupcakes and cookies in the end would be the same.
6 u + 36 = 1 u + 131
6 u - 1 u = 131 - 36
5 u = 95
1 u = 95 ÷ 5 = 19
Number of cookies that Aunt Wendy made
= 10 u + 60
= 10 x 19 + 60
= 190 + 60
= 250
Answer(s): 250
