Asked by Kristiana

In the set of all whole numbers from 20 to 29,what fraction have two integers which add up to 7?

A.1/9
B.1/10
C.5/10
D.9/10
Answered by Ms. Sue
20, 21, 22, 23, 24, 25, 26, 27, 28, 29

I only see one set of digits whose sum is 7.

Answered by Kristiana
IDK that's why i need help last yr. our teacher didn't teach us any of this so it is difficult.
Answered by Ms. Sue
Please read my explanation to your later problem. Then, post your answer here and I'll check it.
Answered by Kristiana
plz help me i don't get this at all and i've never done it b4 and i really need help
Answered by Ms. Sue
http://www.jiskha.com/display.cgi?id=1317077656

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