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Posted by **Willie** on Monday, July 23, 2012 at 6:54pm.

-4 ≤ 3n ≤ 87?

a) 32

b) 31

c) 30

d) 29

e) 28

i got (b) 31 but I'm not sure.

- Mathematics -
**Reiny**, Monday, July 23, 2012 at 8:42pm-4 ≤ 3n ≤ 87

divide by 3

-4/3 ≤ n ≤ 29

So you would have all the integers from -1 to 29

from 1 to 29 would be 29 of them, plus the 0 and the -2 makes a total of 31

You are correct.

- Mathematics -
**Willie**, Monday, July 23, 2012 at 10:06pmThank you so much

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