Homework Help: math

Posted by Jennifer on Wednesday, July 20, 2011 at 10:35pm.

When m is divided by 7, the remainder is 2. What is the remainder when 4m is divided by 7?

Please give me an explanation and not just the answer! Thankss:)

math - drwls, Thursday, July 21, 2011 at 4:35am
When 4m is divided by 7, you would have 4*2=8 left over, BUT since you are dividing by 7, seven goes into 4m an extra time, leaving 1 left over as the remainder.

Example:

Suppose m = 16
then m/7 = 2 2/7
(That is 2 with 2 left over)

4m = 64 4m/7 = 9 1/7
(That is 9 with 1 left over)

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