iwnson868 iwnson868
  • 16-09-2020
  • Mathematics
contestada

3 shirts and 4 hats equal 96 dollars, 2 shirts and 5 hats equal 99 dollars. How much does a shirt cost?

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jasonderulooooo jasonderulooooo
  • 16-09-2020
shirt=x
hats=y

3x+4y=96
2x+5y=99
(you'll have to get x in both equations to equal each other or y as well it doesn't matter which so:

6x+8y=192
6x+15y=297
-7y=-105
7y=105
y=15

3x+4y=96
3x+4x15=96
3x=96-60
x=36/3
x=12

a shirt is $12 hope it makes sense!!
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2x + 5y = 0 x - 5y = -15