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frosja888 [35]
3 years ago
6

If xy is rational, must x and y each be rational?

Mathematics
1 answer:
balu736 [363]3 years ago
3 0
<span>Your answer is is simply,no x and y could have a common irrational factor. </span>
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How much pay does john receive if he gives half of his pay to family,250 to his landlord and has exactly 3/7 of his pay left ove
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Answer:

John receives a pay of $3,500.00

Step-by-step explanation:

x = John's pay

x = 1/2x + 250 + 3/7x     [1/2 = 7/14 and 3/7 = 6/14]

x = 13/14x + 250

x - 13/14x = 13/14x - 13/14x + 250    [1x = 14/14]

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x = 3500

Check:

3500 = 1/2(3500) + 250 + 3/7(3500)

3500 = 1750 + 250 + 1500

3500 = 3500

 

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