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Sergio [31]
3 years ago
11

Find the volume of wood used to make a closed box of outer dimensions 60 cm × 45 cm × 32 cm, the thickness of wood being 2.5 cm

all around.
Mathematics
1 answer:
kati45 [8]3 years ago
8 0
The dimension of the rectangular box is 60cm x 45cm x 32cm. The dimension of the wood used has the thickness of 2.5 cm all around  the rectangular box. In order to get the volume of the wood, subtract each side of the rectangular box by 2.5.

Volume = 57.5 cm x 52.5cm x 29.5cm
Volume = 89053.1252 cm^3
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3 0
4 years ago
You have 550$ in a savings account that earns 3% simple interest each year.How much will be in your account in 10 years?
Tomtit [17]
Hey there! Hope I can help!

<span><span>P is the principal amount, $550.00.
</span><span>R is the interest rate, 3% per year, or in decimal form, 3/100 = 0.03.
</span><span>T is the time involved, 10 year(s) time period.
</span><span>So, t is the 10 year time period.

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</span>
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7 0
3 years ago
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

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

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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.

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