A rectangles width is 5 feet less than its length. If the area of the rectangle is 546 square feet, what is its length, in feet?
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OpenStudy (anonymous):
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OpenStudy (anonymous):
I know it would look like that, and the equation would be 546 = 2L + 2(L-5). Do I just distribute and solve? I don't know why this problem seemed so confusing to me
OpenStudy (mindblast3r):
I'm trying to figure it out ;p
OpenStudy (anonymous):
Haha okay, I ended up getting 139 as my answer but I don't know if that's right
OpenStudy (mindblast3r):
546 ÷ 2 = 273
273 = L + W
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OpenStudy (mindblast3r):
oh I get it!
OpenStudy (mindblast3r):
273 ÷ 2 = 136.5
OpenStudy (mindblast3r):
oh wait wtf!
OpenStudy (mindblast3r):
if i minus 5 it won't be 546 anymore, if i add 5 it won't be 546 anymore either.
OpenStudy (mindblast3r):
do you even understand what i'm talking about? or am i speaking chinese?
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OpenStudy (anonymous):
haha i'm trying to follow you, but i'm really bad with word problems so not all of it makes sense
OpenStudy (mindblast3r):
oh i think i get it 100% now
OpenStudy (mindblast3r):
aha! I got it!
OpenStudy (mindblast3r):
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OpenStudy (mindblast3r):
add that
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OpenStudy (mindblast3r):
134 + 139 x 2 = 546
OpenStudy (mindblast3r):
wtf? this is area?
OpenStudy (mindblast3r):
i think i did a perimeter formula
OpenStudy (anonymous):
@Mindblast3r I don't even know what i've been doing