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Oksana_A [137]
3 years ago
15

Grace starts with 100 milligrams of a radioactive substance. The amount of the substance decreases by 14 each week for a number

of weeks, w. She writes the expression 100(14)w to find the amount of radioactive substance remaining after w weeks. Ryan starts with 1 milligram of a radioactive substance. The amount of the substance decreases by 40% each week for a number of weeks, w. He writes the expression (1 – 0.4)w to find the amount of radioactive substance remaining after w weeks. Use the drop-down menus to explain what each part of Grace’s and Ryan’s expressions mean.
Mathematics
2 answers:
UNO [17]3 years ago
8 0

Answer:

100= Initial Amount

1/4= decay factor for each week

w= number of weeks

1/4w= decay factor after w weeks

1 - 0.4= decay factor for each week

w= number of weeks

0.4= percent decrease

Step-by-step explanation:

Eva8 [605]3 years ago
7 0

Answer:

I Believe Grace Is Dead Dreamer?!

Step-by-step explanation:

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