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denis-greek [22]
3 years ago
6

The school store has 1200 pencils in stock and sells an average of 25 pencils per day. The manager reorders when the the number

of pencils in stock is 650. Write an equation that can be used to determine in how many days the manager will have to reorder.
Mathematics
2 answers:
Readme [11.4K]3 years ago
8 0

(1200÷25) ÷ans= days

lina2011 [118]3 years ago
6 0
If you divide 1200 by 25 and do that A couple of times you should get how many days that the manager will have to reorder
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Fifteen years ago, you deposited $12,500 into an investment fund. Five years ago, you added an
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Answer:

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Step-by-step explanation:

Given:

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5 years ago, Investment = $20000

Nominal interest = 8% semi annually for first 10 years

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a) for the effective annual interest rate (EAR) in the first 10 years, let's use the formula:

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EAR = [1 + (\frac{0.08}{2})]^2 - 1

= (1 + 0.04)^2 - 1

= (1.04)^2 - 1

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The effective annual interesting rate, EAR = 8.16 %

b) To find the amount in my account today.

Let's first find the amount for $12500 for 10 years compounded semi annually

= 12,500 +( 12,500 * 8.160% * 10)

= $ 22,700

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$32,500 + ($32,500 * 6.5% *5)

= $ 43,062.50

Money in account today will be:

$22,700 + $43,062.50

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c) Let's the amount I should have invested to be X

For first 10 years at 8.160%, we have:

Interest Amount = ( X * 8.160% * 10 ) = 0.8160 X

For next 5 years at 6.5%, we have:

Interest Amount = (X * 6.5% * 5) = 0.325 X

Therefore the total money at the end of 15 Years = 85000

0.8160X + 0.3250X + X = $85,000

= 2.141X = $85,000

X = 85,000/2.141

X = 39,701.074 ≈ $39,700

If I wish to have $85,000 now, I should have invested $39,700 15 years ago

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