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Ratling [72]
2 years ago
12

you have $155 in a savings account. you decide tobl add $20 to the account every week. write an expression that shows your savin

gs after n weeks​
Mathematics
2 answers:
KIM [24]2 years ago
8 0

Answer:155+20n

Step-by-step explanation:

Crank2 years ago
3 0

Answer:

155+20n

Step-by-step explanation:

You start off with the base amount of money, or the constant. That's 155. Then you add 20 dollars per week, depending on how many weeks you are thinking of. That means you need to multiply 20 by the amount of weeks you have been adding money. So 20n. Then you add that to the base amount of money, 155, so the answer is 155+20n

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Answer:

The error that Adam could have made is added 45 to the depth of

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Step-by-step explanation:

* Lets explain how to solve the problem

- A submarine traveling 200 meters below the surface of the ocean

- Increases its depth by 45 meters

- Adam says that the new location of the submarine is -155 meters

- We need to know the error of Adam

∵ We consider the surface of the ocean is the zero level

∵ The submarine is 200 meters below the surface of the ocean

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∴ The depth of submarine is -200 meters

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- <em>That means it travels down another 45 meters</em>

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∴ The depth of submarine = -200 + (-45) = -245 meters

∴ The depth of submarine is 245 below the surface of the ocean

- Adam could thought that the submarine traveled up for 45 meters

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∵ -200 + 45 = -155 meters

∴ The error that Adam could have made is added 45 to the

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