There was a sample of 400 milligrams of a radioactive substance to start a study. Since then, the sample has decayed by 5.6% each year. Let t be the number of years since the start of the study. Let y be the mass of the sample in milligrams.

y= -

hi! i think the answer is 1/2 : )

asdasdsad

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.

happy to

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