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Need help solving ( had a tutor on here before and they said they couldn’t help)

Need help solving ( had a tutor on here before and they said they couldn’t help)-example-1

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Given the following table:

TIME (Months) 6 8 10 12

MONEY (Dollars) 590 500 410 320

From the given table, the following was observed.

As the time increases, the amount of money in her account is decreasing.

Let's determine the rate of the amount of money that decreases.


\text{ Rate = }\frac{\Delta\text{ Money}}{\Delta\text{ Time}}\text{ = }\frac{\text{ 320 - 590}}{\text{ 12 - 6}}\text{ = -}\frac{\text{ 270}}{\text{ 6}}\text{ = - 45 Dollars/Month}

Therefore, the rate is -45 Dollars/Month or it is decreasing by 45 Dollars/Month.

Therefore, the answer is Choice A at 45 Dollars/Month

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