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Kristin spent $120 on shirts. Dress shirts cost$40 and t-shirts cost $8. If she bought a total of 7 shirts, then how many of each kind did she buy?

Kristin spent $120 on shirts. Dress shirts cost$40 and t-shirts cost $8. If she bought a total of 7 shirts, then how many of each kind did she buy?
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Kristin spent $120 on shirts. Dress shirts cost$40 and t-shirts cost $8. If she bought a total of 7 shirts, then how many of each kind did she buy?

User Ryan Salmons
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2 Answers

4 votes
5 t shirts and 2 dress shirts :)
User Andrzej Rehmann
by
7.1k points
1 vote
T-shirts is X
Dress shirts Y

x+y=7
8x+40y=120

Times first equation by 40 eliminating y
40x+40y=280
8x+40=120
32x=160
x=5
x+y=7
5+y=7
y=2

5x8=40
2x40=80=120
5 shirts and 2 dress shirt
User Aravind A
by
8.5k points
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