Mathematics, 07.07.2019 21:30 girly37
Eric starts with 10 milligrams of a radioactive substance. the amount of the substance decreases by 12 each week for a number of weeks, w. he writes the expression 10(12)w to find the amount of radioactive substance remaining after w weeks. andrea starts with 1 milligram of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. she writes the expression (1−0.2)w to find the amount of radioactive substance remaining after w weeks. use the drop-down menus to explain what each part of eric’s and andrea’s expressions mean.
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Eric starts with 10 milligrams of a radioactive substance. the amount of the substance decreases by...
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