Aunt Risa made 45 more biscuits than scones. After she gave 0.7 of the biscuits and
25 of the scones to Nicole, she was left with 63 more biscuits than scones. How many biscuits did she make?
| |
Biscuits |
Scones |
Comparing biscuits
and scones at first |
|
45 more |
Before |
10 u |
5x2 + 45 =
10 u + 45 |
Change |
- 7 u |
- 2x2 - 18 =
- 4 u - 18
|
After |
3 u |
3x2 + 27 =
6 u + 27 |
Comparing biscuits
and scones in the end |
|
63 more |
0.7 =
710 25 x 45 = 18
Number of scones that Aunt Risa gave to Nicole = 4 u + 18
If Aunt Risa made another 63 biscuits in the end, the number of biscuits and scones in the end would be the same.
6 u + 27 = 3 u + 63
6 u - 3 u = 63 - 27
3 u = 36
1 u = 36 ÷ 3 = 12
Number of biscuits that Aunt Risa made
= 10 u
= 10 x 12
= 120
Answer(s): 120
