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geniusboy [140]
3 years ago
5

The function below can be used to calculate the cost of making a long distance call, f(m), which is based on a $2.50 initial cha

rge and a fee of $.12 per minute, m, that the call lasts.
f(m)=2.5+0.12m

If Natalie paid $6.82 for one call, how many minutes long was it?
Mathematics
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

she was on a call for 36 minutes

Step-by-step explanation: 6.82-2.5= 4.32 4.32/.12= 36

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Uta invests an amount into a compound interest investment account that pays 6% a year. After six years, she withdraws her total
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Answer: $352.48

Step-by-step explanation:

Hi, to answer this question we have to apply the formula:

A = P (1 + r)^t

Where  

A: total balance after invest

P: principal amount invested

r = interest rate (in decimal form)

t = time (years)

Replacing with the values given:

500= P (1+0.06)^6

Solving for P:

500 = P (1.06)^6

500 / ( (1.06)^6)=P

500 / 1.4185 =P

$352.48= P

6 0
3 years ago
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How can I simplify this expression using only positive exponents ?
belka [17]
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Answer:

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Nataly [62]
% increase = Increase ÷ Original Number × 100.<span>
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5 0
3 years ago
Assume that y varies directly with x, then solve.
Volgvan

Answer:

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Step-by-step explanation:

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8 0
3 years ago
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