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tensa zangetsu [6.8K]
3 years ago
7

Greta opens a savings account with $25 she saves $20 each week

Mathematics
1 answer:
grigory [225]3 years ago
8 0

Answer:

Greta spends$25-$20=$5per week.

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Mark is trying to determine all three side lengths of an isosceles triangle. He knows that the two congruent sides on the triang
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3 years ago
How do u regroup when u find the sum of 64+43
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What we are going to do is use the DISTRIBUTIVE PROPERTY. This distributive the numbers, to make it easier to solve.

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6 0
3 years ago
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A person wants to have $25,000 cash for a new car 5 years from now. how much should be placed in an account now if the account p
prisoha [69]
<h3>Given</h3>

Future value of an investment at 4.75% compounded weekly is $25,000

<h3>Find</h3>

The present value of the investment, to the nearest dollar

<h3>Solution</h3>

The multiplier is (1 + .0475/52)^(52·5) ≈ 1.2679375, so the amount required is found from

... 1.2679375×present value = 25,000

... present value = 25,000/1.2679375 ≈ 19,717

$19,717 needs to be placed in the account now.

_____

When an annual interest rate r is compounded n times per year, the annual multiplier is (1 +r/n)^n. Here, we have n=52 (weeks per year). The multiplier is applied 5 times (raised to the 5th power) to obtain the result of a 5-year investment.

3 0
3 years ago
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