Winnie bought 8 scones more than wafers. Each scone cost $1.20 while each wafer cost $2.30. Given that she spent $23.60 in total, how many wafers did Winnie buy?
| |
Wafers |
Scones |
Total |
| Number |
1 u |
1 u + 8 |
|
| Value |
$2.30 |
$1.20 |
|
| Total value |
2.3 u |
1.2 u + 9.6 |
1.2 u + 9.6 |
Amount that Winnie paid for the wafers
= 1 u x 2.30
= 2.3 u
Amount that Winnie paid for scones
= 1.2 x (1 u + 8)
= 1.2 u + 9.6
Total amount that Winnie paid
= 2.3 u + 1.2 u + 9.6
= 3.5 u + 9.6
3.5 u + 9.6 = 23.6
3.5 u = 23.6 - 9.6
3.5 u = 14
1 u = 14 ÷ 3.5 = 4
Number of wafers that Winnie bought
= 1 u
= 4
Answer(s): 4
