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a male black widow spider is half the size of a female black widow spider. together they are 21 millimeter in length. how big i...Asked by carito
A male black widow spider is half the size of a female black widow spider. Together, they are 21 millimeters in lenght. How big is a female black widow? A male?
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Answered by
kay
Let x be the size of the male and y the size of the female.
x+y=21 and x=y/2
solve simple simultaneous
x+y=21 and x=y/2
solve simple simultaneous
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