Roshel bought 4 macarons more than muffins. Each macaron cost $1.10 while each muffin cost $2.40. Given that she spent $25.40 in total, how many muffins did Roshel buy?
| |
Muffins |
Macarons |
Total |
| Number |
1 u |
1 u + 4 |
|
| Value |
$2.40 |
$1.10 |
|
| Total value |
2.4 u |
1.1 u + 4.4 |
1.1 u + 4.4 |
Amount that Roshel paid for the muffins
= 1 u x 2.40
= 2.4 u
Amount that Roshel paid for macarons
= 1.1 x (1 u + 4)
= 1.1 u + 4.4
Total amount that Roshel paid
= 2.4 u + 1.1 u + 4.4
= 3.5 u + 4.4
3.5 u + 4.4 = 25.4
3.5 u = 25.4 - 4.4
3.5 u = 21
1 u = 21 ÷ 3.5 = 6
Number of muffins that Roshel bought
= 1 u
= 6
Answer(s): 6
