Aunt Tammy made 40 less wafers than scones. After she gave 0.9 of the wafers and
25 of the scones to Mary, she was left with 104 less wafers than scones. How many scones did she make?
| |
Wafers |
Scones |
Comparing wafers
and scones at first |
|
40 more |
Before |
10 u |
5x2 + 40 =
10 u + 40 |
Change |
- 9 u |
- 2x2 - 16 =
- 4 u - 16
|
After |
1 u |
3x2 + 24 =
6 u + 24 |
Comparing wafers
and scones in the end |
|
104 more |
0.9 =
910 25 x 40 = 16
Number of scones that Aunt Tammy gave to Mary = 4 u + 16
If Aunt Tammy made another 104 wafers in the end, the number of wafers and scones in the end would be the same.
6 u + 24 = 1 u + 104
6 u - 1 u = 104 - 24
5 u = 80
1 u = 80 ÷ 5 = 16
Number of scones that Aunt Tammy made
= 10 u + 40
= 10 x 16 + 40
= 160 + 40
= 200
Answer(s): 200
