Ian sells sweaters and hoodies. For each sweater he sells, he earns $30. For each hoodie he sells, he earns $18. In August, he sold 25 sweaters and hoodies altogether and earned $570. How many sweaters did he sell?
Number of
sweaters |
Amount earned
from the sweaters |
Number of
hoodies |
Amount earned
from the hoodies |
Total amount
earned |
25
|
25 x 30
= $750 |
0
|
0
|
$750
|
24
|
24 x 30
= $720 |
1
|
1 x 18 =
$18 |
$738 |
| 10 |
10 x 30
= $300 |
15
|
15 x 18 =
$270 |
$570
|
Amount that Ian earns if he sells 25 sweaters
= 25 x 30
= $750
Big difference between the amount on the sweaters and the hoodies
= 750 - 570
= $180
Small difference the amount on one sweater and the hoodie
= 30 - 18
= $12
Number of hoodies that Ian sold in August
= 180 ÷ 12
= 15
Number of sweaters that Ian sold in August
= 25 - 15
= 10
Answer(s): 10
