The area of a rectangle is 65m^2, and the length of the rectangle is 3m less than twice the width. Find the dimensions of the rectangle.
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OpenStudy (anonymous):
@tester97 try this lol
OpenStudy (anonymous):
@Euler271 dude... just in time.
OpenStudy (anonymous):
lol hey
OpenStudy (anonymous):
so area is L * W = length * width
the equation says L = 2W - 3 (3 less than twice the width)
so L * W = 65
plug in L = 2W - 3
(2W - 3) * W = 65
solve for W
OpenStudy (anonymous):
-5, 13/2
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OpenStudy (anonymous):
yes. and since -5 doesn't make sense, we know the answer is W = 13/2
you can plug that W into L = 2W - 3 to find L
OpenStudy (anonymous):
l=2(13/2)-3?
l=10? :3
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
i was about to make food. ill be on later. im working from home today :P
OpenStudy (anonymous):
lol
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OpenStudy (anonymous):
up to you. sometimes latex is useful
OpenStudy (anonymous):
wanna try it out? i'll tell you if you're doing it right
OpenStudy (anonymous):
latex? o.o
I got the answer for that one already
OpenStudy (anonymous):
\[\sqrt{this\ is\ latex}\]
OpenStudy (anonymous):
Oh, I got it.
The length of a rectangle is 5ft less than three times the width, and the area of the rectangle is 50ft^2. Find the dimensions of the rectangle.
L*W
L*W=50
L=5w-3
(5w-3)*W=50
W=3/5 +10/w...? what.
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