SOLUTION: How many positive two-digit integers are multiple of 3?
Algebra.Com
Question 695854: How many positive two-digit integers are multiple of 3?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
All multiples of 3 can be expressed as , where n is a positive integer.
A two digit number is at least 10 (greater than 9),
and no more than 99 (lesser than or equal to 99).
We can write that as the compound inequality
--> -->
So could be any of the first positives integers,
except of the first .
That gives us choices for ,
meaning there are positive integers that are
multiples of 3 and two-digit positive integers.
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