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teddygirl
Group Title
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
 2 years ago
 2 years ago
teddygirl Group Title
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
 2 years ago
 2 years ago

This Question is Closed

TheViper Group TitleBest ResponseYou've already chosen the best response.2
dw:1339692621478:dw
 2 years ago

teddygirl Group TitleBest ResponseYou've already chosen the best response.0
dw:1339692696540:dw
 2 years ago

TheViper Group TitleBest ResponseYou've already chosen the best response.2
dw:1339692765055:dw Is it like this?
 2 years ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.1
correct. x=6, y = 2
 2 years ago

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

TheViper Group TitleBest ResponseYou've already chosen the best response.2
then u r correct:)
 2 years ago

teddygirl Group TitleBest ResponseYou've already chosen the best response.0
one more question.. Is that method called substitution or elimination?
 2 years ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.1
its other way.. x=2, y=6.
 2 years ago

ganeshie8 Group TitleBest ResponseYou've already chosen the best response.1
elimination
 2 years ago

teddygirl Group TitleBest ResponseYou've already chosen the best response.0
ok thanks!
 2 years ago

TheViper Group TitleBest ResponseYou've already chosen the best response.2
\[\Huge{\color{red}{\text{U r welcome:)}}}\]
 2 years ago
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