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Leto [7]
3 years ago
5

Mary makes $ 8 as a regular employee. If she becomes the Manager she will increase her hourly rate by 30%. What's the equation ?

Mathematics
1 answer:
Helen [10]3 years ago
7 0

8(1 + .3) = 10.4
her new hourly wage is $10.40
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How much interest is earned on a principal of $316 invested at an interest rate of 9%
anzhelika [568]

Answer:

$130.06

Step-by-step explanation:

Interest is calculated as shown;

I = A - P

A is the amount

P is the principal

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Principal = $316

Rate R = 9% = 0.09

Time t = 4yrs

Substiutte and get Amount A

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4 0
3 years ago
A country’s population in 1993 was 94 million.
Wewaii [24]

Answer:

Step-by-step explanation:

A = Pe^rt

A = total

P = amount you start with

r = rate

t = time

Let's calculate the rate.

99000000 = 94000000e^r*6

Divide each side by 94m

99000000/94000000 = e^6r

Take the natural log of e of both sides.

ln(99000000/94000000) = 6r

Divide each side by 6.

(ln(99000000/94000000))/6 = r

Now we can find the population in 2005.

A = 94000000e^0.00863751131 * 12

A = 104265957

The population in 2005 is 104,265,957 people.

6 0
3 years ago
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