The time, you need to type a certain paper varies inversely with the rate, r, that you can type, when typing 40 words per minute, you can finish 50 minutes. Find the constant of proportionality and write an equation relating r.

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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-81 -56 -27 0 81

step-by-step explanation:

step-by-step explanation:

no solution.