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cdelomas
Group Title
A banner is 4 feet longer than its width the area is 77 square feet. what is the width and length
 one year ago
 one year ago
cdelomas Group Title
A banner is 4 feet longer than its width the area is 77 square feet. what is the width and length
 one year ago
 one year ago

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kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
dw:1354222764363:dw so w(w+4)=77
 one year ago

cdelomas Group TitleBest ResponseYou've already chosen the best response.0
soould be the width and length
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
yes, so do you know how to solve this equation above? that will give you your width
 one year ago

cdelomas Group TitleBest ResponseYou've already chosen the best response.0
would it be 16
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
have you learned how to factor?
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
so you have the equation w(w+4)=77 so the first step would be to do distributive property, so now you have w^2+4w=77
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
subtract 77 from both sides and your equation is now w^2+4w77=0
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
Now you must factor it. When I factor it I get (w+11)(w7)=0
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
Now you test both solutions. w+11=0 and w7=0. When I solve both of those I get w= 7,11. Since you cannot have a negative width, the answer for the width is 7.
 one year ago

kirk.freedman Group TitleBest ResponseYou've already chosen the best response.1
Now just from the original picture you do w+4, since you know w now, it is 7+4. So you have the width is 7 and the length is 11.
 one year ago
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