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PolarNik [594]
3 years ago
8

alex earned $20. he earned 1/4 of the amount rob earned. how much did rob earn? write an equation to match.

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0
S=80/4x1 
20x4/1 equation
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We want to study a general product, and find information about the ones place.

We will see that the ones place is always zero.

We have the expression:

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