Aunt Nora made 70 less puffs than tarts. After she gave 0.9 of the puffs and
35 of the tarts to Linda, she was left with 88 less puffs than tarts. How many tarts did she make?
| |
Puffs |
Tarts |
Comparing puffs
and tarts at first |
|
70 more |
Before |
10 u |
5x2 + 70 =
10 u + 70 |
Change |
- 9 u |
- 3x2 - 42 =
- 6 u - 42
|
After |
1 u |
2x2 + 28 =
4 u + 28 |
Comparing puffs
and tarts in the end |
|
88 more |
0.9 =
910 35 x 70 = 42
Number of tarts that Aunt Nora gave to Linda = 6 u + 42
If Aunt Nora made another 88 puffs in the end, the number of puffs and tarts in the end would be the same.
4 u + 28 = 1 u + 88
4 u - 1 u = 88 - 28
3 u = 60
1 u = 60 ÷ 3 = 20
Number of tarts that Aunt Nora made
= 10 u + 70
= 10 x 20 + 70
= 200 + 70
= 270
Answer(s): 270
