SOLUTION: A rectangle's length is twice its width. The perimeter is 180 ft. Find the area, and length and width.
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Question 937853: A rectangle's length is twice its width. The perimeter is 180 ft. Find the area, and length and width.
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = length
y = width
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x = 2y
2x + 2y = 180
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put the system of linear equations into standard form
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x - 2y = 0
2x + 2y = 180
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https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = 60 ft
y = 30 ft
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answer:
he will ride 2.25 hours on his out-bound leg ...
z = 24x
z = 24*2.25
z = 54
he will ride 54 miles downwind, at which point he must turn around and head back home
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