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4 Answers

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by (59.5m points)
The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Hope this helps! 
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I believe it is 60-10=x because it says she purchased it with 60$ but recieved 10$ in change causing the amount we dont know to be a variable such as "x"
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(3/5)^2=9/25
the answer to the question
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It is difficult to find length that way because you still need that extra step where are apply the Pythagorean Theorem (a^2 + b^2 = c^2, where c is the hypotenuse and a and b are the legs), which could use a lot of useless squaring, when you could do something clever instead.

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