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shortie1515
Group Title
Translate this problem to an equation and solve.
The width of a rectangle is 6 inches less than twice its length. Find the dimension of the rectangle if its area is 108 square inches. @johnweldon1993
 one year ago
 one year ago
shortie1515 Group Title
Translate this problem to an equation and solve. The width of a rectangle is 6 inches less than twice its length. Find the dimension of the rectangle if its area is 108 square inches. @johnweldon1993
 one year ago
 one year ago

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sampatho2 Group TitleBest ResponseYou've already chosen the best response.0
let length be l width= 2 * l  6 let width be w l * w = 108 I think you can solve this now
 one year ago

johnweldon1993 Group TitleBest ResponseYou've already chosen the best response.0
Just as @sampatho2 has shown W = 2L  6 A = L x W We know area 108 = L x W We know W = 2L  6 so substitute that in for 'W' 108 = L x (2L  6) can you take it from here...?
 one year ago

sampatho2 Group TitleBest ResponseYou've already chosen the best response.0
where are you facing the problem. You just need to solve the equation for l
 one year ago

shortie1515 Group TitleBest ResponseYou've already chosen the best response.0
but i still dont get it
 one year ago

shortie1515 Group TitleBest ResponseYou've already chosen the best response.0
@johnweldon1993
 one year ago

Noura11 Group TitleBest ResponseYou've already chosen the best response.0
Let x be the length and y the width. Then : \[2x6=y\\xy=108\] So from the 2nd equation we have : \[x=\frac{108}{y}\] And from the 1st equation : \[2\frac{108}{y}6=y\] We multiply by y to get : \[2166y=y^2\] And then : \[y^2+6y216=0\] so : \[\Delta=364\times(216)=900\] So : \[y=\frac{6+\sqrt{900}}{2}=\frac{6+30}{2}=12 \text{ inches}\] And then : \[x=\frac{108}y=\frac{108}{12}=9 \text{ inches}\]
 one year ago

shortie1515 Group TitleBest ResponseYou've already chosen the best response.0
i dont get it still @johnweldon1993 @Noura11
 one year ago

Noura11 Group TitleBest ResponseYou've already chosen the best response.0
Tell me what didn't understand in my solution and I will try to explain it to you ?
 one year ago

shortie1515 Group TitleBest ResponseYou've already chosen the best response.0
the whole thing tht u did its suppost to be like this type the answer in this from:6*7
 one year ago

Noura11 Group TitleBest ResponseYou've already chosen the best response.0
Can you explain more , please ?
 one year ago

shortie1515 Group TitleBest ResponseYou've already chosen the best response.0
i got it
 one year ago

Noura11 Group TitleBest ResponseYou've already chosen the best response.0
Glad to hear that !
 one year ago
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