Eric sells skirts and hoodies. For each skirt he sells, he earns $30. For each hoodie he sells, he earns $17. In October, he sold 38 skirts and hoodies altogether and earned $750. How many skirts did he sell?
Number of
skirts |
Amount earned
from the skirts |
Number of
hoodies |
Amount earned
from the hoodies |
Total amount
earned |
38
|
38 x 30
= $1140 |
0
|
0
|
$1140
|
37
|
37 x 30
= $1110 |
1
|
1 x 17 =
$17 |
$1127 |
| 8 |
8 x 30
= $240 |
30
|
30 x 17 =
$510 |
$750
|
Amount that Eric earns if he sells 38 skirts
= 38 x 30
= $1140
Big difference between the amount on the skirts and the hoodies
= 1140 - 750
= $390
Small difference the amount on one skirt and the hoodie
= 30 - 17
= $13
Number of hoodies that Eric sold in October
= 390 ÷ 13
= 30
Number of skirts that Eric sold in October
= 38 - 30
= 8
Answer(s): 8
