XxGabbyxX
XxGabbyxX
20-02-2015
Mathematics
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A number r decreased by 13 is at most 15
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iGreen
iGreen
20-02-2015
r - 13 <= 15
Add 13 to both sides:
r <= 28
Note '<=' is less than or equal to.
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Аноним
Аноним
20-02-2015
the answer is r is less than or equal to 28
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