Six times the smaller of two numbers minus the larger number is -15. Thirteen more than twice the smaller number is three times the larger number. Set up a system of linear equations, and solve for the indicated quantities.

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step-by-step explanation:

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.

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