Aunt Raeann made 100 less puffs than tarts. After she gave 0.7 of the puffs and
25 of the tarts to Pamela, she was left with 93 less puffs than tarts. How many tarts did she make?
| |
Puffs |
Tarts |
Comparing puffs
and tarts at first |
|
100 more |
Before |
10 u |
5x2 + 100 =
10 u + 100 |
Change |
- 7 u |
- 2x2 - 40 =
- 4 u - 40
|
After |
3 u |
3x2 + 60 =
6 u + 60 |
Comparing puffs
and tarts in the end |
|
93 more |
0.7 =
710 25 x 100 = 40
Number of tarts that Aunt Raeann gave to Pamela = 4 u + 40
If Aunt Raeann made another 93 puffs in the end, the number of puffs and tarts in the end would be the same.
6 u + 60 = 3 u + 93
6 u - 3 u = 93 - 60
3 u = 33
1 u = 33 ÷ 3 = 11
Number of tarts that Aunt Raeann made
= 10 u + 100
= 10 x 11 + 100
= 110 + 100
= 210
Answer(s): 210
