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4. As a fund-raiser, the student council sold
T-shirts and sweatshirts. They sold a total
of 105 T-shirts and sweatshirts and raised
$1170. If the cost of a T-shirt t was $10 and
the cost of a sweatshirt s was $15, what
was the number of sweatshirts sold?
A 24
B 52
C 81
D 105


Sagot :

T - Shirts = $10
SweatShirts = 15$

24 *15 =360$

105 - 24 = 81

81 * 10 = 810$

810 + 360 = 1170$

T shirts = 81
Sweat= 24. /A\is the correct Answer