(02.01)The ratio of X's to O's is 15 over 10. . Use the image below to determine another ratio for X's to O's:

A. 2 over 3
B. 3 over 2
C. 10 over 15
D. 5 over 1.

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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if you was gonna solve for a, a is a   < -12