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rebecca1233
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BDFH is a rectangle with a width of 5 and a length of 12. One diagonal is 2x + 3y and the other diagonal is x + 8y. Find the values of x and y.
x = 4 and y = 1
x = 4 and y = 1
x = 5 and y = 1
x = 5 and y = 1
 one year ago
 one year ago
rebecca1233 Group Title
BDFH is a rectangle with a width of 5 and a length of 12. One diagonal is 2x + 3y and the other diagonal is x + 8y. Find the values of x and y. x = 4 and y = 1 x = 4 and y = 1 x = 5 and y = 1 x = 5 and y = 1
 one year ago
 one year ago

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rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
@RadEn
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
hint : diagonal = sqrt(l^2 + w^2) l=length, w=width
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
so wt do i do 5^2 + 12^3?
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
5^2 = 5 * 5 = 25 and 12^2 = 12 * 12 = 144 add of them, and take squareroot after that
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
so add 144 + 25 = 169
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
sqrt(169) = ... ?
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
bt thats not an answer option
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
so wt do i do now
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
yes, it just a start
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
now, the diagonal represnted by equations : d=2x + 3y and d=x+8y and we knowed that the length of diagonals of rectangle is same, so 2x+3y=13 and x+8y=13 solve for x and y by elimination or subt method
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
or u can do trial error from ur options
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
i got it x= 5 y = 1
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
yep, that's correct
 one year ago

rebecca1233 Group TitleBest ResponseYou've already chosen the best response.0
thank you
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
you're welcome
 one year ago
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