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ValentinaT
 2 years ago
Help?
ValentinaT
 2 years ago
Help?

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JamesWolf
 2 years ago
Best ResponseYou've already chosen the best response.2so for the first triangle perimeter, p1, is ; p1 = 2y + x = 14 for the second triangle perimeter, p2, is; p2 = (5/4)y + (5/4) y + 3x = 21 p2 = (5/2)y + 3x so you need to solve the simultaneous equations 2y + x = 14 (5/2)y + 3x

JamesWolf
 2 years ago
Best ResponseYou've already chosen the best response.2the bottom one should be (5/2)y + 3x = 21

ValentinaT
 2 years ago
Best ResponseYou've already chosen the best response.0Okay, how would I solve those?

JamesWolf
 2 years ago
Best ResponseYou've already chosen the best response.2you need to get just one variable in an equation first. So i would eliminate the x's by multiplying the top equation by 3. Now both equations have "3x" and you can subtract the top equation from the bottom to get a formula with just y's.

JamesWolf
 2 years ago
Best ResponseYou've already chosen the best response.2then you can solve that to find the value of y, plug it back in the original equation and you can find out x
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