SOLUTION: 10% of x degrees is the complement of 40% of 2x degrees . find x

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Question 885381: 10% of x degrees is the complement of 40% of 2x degrees . find x
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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10% of x degrees is the complement of 40% of 2x degrees . find x\
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Write an equation for what is says.
90 - .4(2x) = .1x
90 - .8x = .1x
90 = .1x + .8x
90 = .9x
x = 90/.9
x = 100 degrees
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Check this in the original statement
10% of 100 degrees is the complement of 40% of 200 degrees
90 - .4(200) = .1(100)