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svlad2 [7]
3 years ago
9

Haley and Nicole stopped at the school bookstore for extra supplies. Haley

Mathematics
1 answer:
nata0808 [166]3 years ago
7 0

Answer:

Step-by-step explanation:

8p+3f=10.39

5p+4f=10.51

subtract

3p-f=-0.12

f=3p+0.12

8p+3(3p+0.12)=10.39

17p=10.39-0.36

17p=10.03

p=10.03/17=0.59

f=3×0.59+0.12=1.77+0.12=1.89 $

or 40 p+15f-40p-32f=51.95-84.08

-17f=-32.13

f=1.89 $

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Answer:

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3 years ago
1. You invest $2500 with annual interest rate of 4%. How much money will you have after 5 years?Use the following formula:A = P(
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Explanation

we need to use the formula:

\begin{gathered} A=P(1+r)^t \\ \text{where} \\ \text{ P is the principal} \\ r\text{ is the rate ( in decimal)} \\ t\text{ is the time} \end{gathered}

Step 1

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