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IRISSAK [1]
3 years ago
7

A.230 B.270 C.300 D.330

Mathematics
1 answer:
liberstina [14]3 years ago
8 0
Best way to address this problem is to derive a linear equation representing this situation.  We see that if x increases from 1 to 2, the weight of papers collected increases from 30 to 60 (lb).  Thus, the slope of this line is 

        60-30
--------------- = 30 lb/ week
        2-1

Then weight - 60 = (30 lb/week)(x - 1), or weight = 60 + (30 lb/wk)(x-1).

After 10 weeks, Ben would have collected 60 + 30(10-1) = 60 + 270 lb, or 330 lb (answer)
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