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Serga [27]
3 years ago
12

I don't know how to do this please help

Mathematics
1 answer:
AveGali [126]3 years ago
8 0
5z>15-----subtract 2 on both sides
z>3----divide by 5
therefore, z must equal -10, or -4
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22.11 divided by 11?
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Colt1911 [192]

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3 0
3 years ago
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Maureen earned some money doing odd jobs last summer and put it in a savings account that earns 9% interest compounded quarterly
ivolga24 [154]

Answer:

Maureen earned $123.19 doing odd jobs

Step-by-step explanation:

The compound interest formula is given by:

A(t) = P(1 + \frac{r}{n})^{nt}

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit year and t is the time in years for which the money is invested or borrowed.

In this question:

Compounded quarterly means that n = 4

10 years, so t = 10

9% interest, so r = 0.09

There is $300.00 in the account, which means that A = 300

How much did Maureen earn doing odd jobs?

This is P.

A(t) = P(1 + \frac{r}{n})^{nt}

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P = \frac{300}{(1.0225)^{40}}

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Maureen earned $123.19 doing odd jobs

5 0
3 years ago
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