Aunt Wendy made 90 more tarts than muffins. After she gave 0.9 of the tarts and
25 of the muffins to Kimberly, she was left with 124 more tarts than muffins. How many tarts did she make?
| |
Tarts |
Muffins |
Comparing tarts
and muffins at first |
|
90 more |
Before |
10 u |
5x2 + 90 =
10 u + 90 |
Change |
- 9 u |
- 2x2 - 36 =
- 4 u - 36
|
After |
1 u |
3x2 + 54 =
6 u + 54 |
Comparing tarts
and muffins in the end |
|
124 more |
0.9 =
910 25 x 90 = 36
Number of muffins that Aunt Wendy gave to Kimberly = 4 u + 36
If Aunt Wendy made another 124 tarts in the end, the number of tarts and muffins in the end would be the same.
6 u + 54 = 1 u + 124
6 u - 1 u = 124 - 54
5 u = 70
1 u = 70 ÷ 5 = 14
Number of tarts that Aunt Wendy made
= 10 u
= 10 x 14
= 140
Answer(s): 140
