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Alla [95]
3 years ago
5

If a phone card is usef to maje s long distance phone call yiu sre chsrged 0.75 per phone call plus an additional 0.20 per minut

e. Write equstion thst can be used to find total cost of a phone call that ladt for m minutes.
Mathematics
2 answers:
Alex73 [517]3 years ago
4 0

0.75+0.20m=?

m= per minute

Ksju [112]3 years ago
3 0

Answer:

0.75+0.20m

Step-by-step explanation:

The start up price (0.75), plus the per min time, multiplied by the ammount of mins (m).

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The price of a calculater has decreased from $200 to $150. What is the percentage of decrease?
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25%

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A fund earns a nominal rate of interest of 6\% compounded every two years. Calculate the amount that must be contributed now to
Nesterboy [21]

Answer:

$712.

Step-by-step explanation:

We have been given that a fund earns a nominal rate of interest of 6% compounded every two years. We are asked to find the amount that must be contributed now to have 1000 at the end of six years.

We will use compound interest formula to solve our given problem.

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

A = Final amount,

P = Principal amount,

r = Annual interest rate in decimal form,  

n = Number of times interest is compounded per year,

t = Time in years.

6\%=\frac{6}{100}=0.06

Since interest is compounded each two years, so number of compounding per year would be 1/2 or 0.5.

1000=P(1+\frac{0.06}{0.5})^{0.5*6}

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1000=P(1.12)^{3}

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