lailonilove71
lailonilove71 lailonilove71
  • 03-02-2018
  • Mathematics
contestada

need help please don't under stand how to do it, its for algebra

need help please dont under stand how to do it its for algebra class=

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yunao98p0tsof
yunao98p0tsof yunao98p0tsof
  • 04-02-2018
Set the price of popcorn be x, and price of candy be y, we have two equation
1: 28x+40y= 282;
2: 17x+20y = 160.5;
The second equation times 2 minus the first equation we will get 6x = 321-282 = 39;
X = 6.5, the price of popcorn is $6.5
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I need some help, pls