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PLEASE HELP/ check answer
The triangle below on the left has a perimeter of 14. The triangle on the right has a perimeter of 21. What are X and Y?
I have this but idk if its right
x + 2y = 14
3x + 5/2y = 21
6x + 5y = 42
6(x + 2y = 14)
6x + 5y = 42
6x  12y = 84
6x + 5y = 42

7y = 42
y = 6
If y = 6 then x = 2 <==ANSWER
 one year ago
 one year ago
PLEASE HELP/ check answer The triangle below on the left has a perimeter of 14. The triangle on the right has a perimeter of 21. What are X and Y? I have this but idk if its right x + 2y = 14 3x + 5/2y = 21 6x + 5y = 42 6(x + 2y = 14) 6x + 5y = 42 6x  12y = 84 6x + 5y = 42  7y = 42 y = 6 If y = 6 then x = 2 <==ANSWER
 one year ago
 one year ago

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TheViperBest ResponseYou've already chosen the best response.2
dw:1339692621478:dw
 one year ago

teddygirlBest ResponseYou've already chosen the best response.0
dw:1339692696540:dw
 one year ago

TheViperBest ResponseYou've already chosen the best response.2
dw:1339692765055:dw Is it like this?
 one year ago

TheViperBest ResponseYou've already chosen the best response.2
If yes then;\[\color{red}{x+2y=14.}\]\[\color{red}{3x+2(\frac{5}{4y})=21.}\]
 one year ago

teddygirlBest ResponseYou've already chosen the best response.0
one more question.. Is that method called substitution or elimination?
 one year ago

ganeshie8Best ResponseYou've already chosen the best response.1
its other way.. x=2, y=6.
 one year ago

TheViperBest ResponseYou've already chosen the best response.2
\[\Huge{\color{red}{\text{U r welcome:)}}}\]
 one year ago
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