mercedespennewp72wea

26.06.2019 • 

Mathematics

Nick starts with 20 milligrams of a radioactive substance. the amount of the substance decreases by 14 each week for a number of weeks, w. he writes the expression 20(14)w to find the amount of radioactive substance remaining after w weeks. autumn starts with 5 milligrams of a radioactive substance. the amount of the substance decreases by 50% each week for a number of weeks, w. she writes the expression (1? 0.5)w to find the amount of radioactive substance remaining after w weeks. use the drop-down menus to explain what each part of nick's and autumn's expressions mean.

Ответ:

reyesdaisy858

10.03.2022

Mathematics

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nick's

1/2: decay factor for each week

w: number of weeks

20: initial amount

(1/2)w: decay factor after w weeks

Autimn's

w:number of weeks

0.5: percent discount

1-0.5: decay factor for each week

Step-by-step explanation:

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Ответ:

Derrick253

21.08.2022

Mathematics

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Is you add all the ones you get 9 and if the mean is 10 sum of numbers/number of numbers so N has to be 91 because 91+9=100 100/10(number of numbers)=10

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