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Serga [27]
3 years ago
5

What is the volume, in cubic ft, of a rectangular prism with a height of 13ft, a width of 15ft, and a length of 9ft?

Mathematics
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

1755 ft³

Step-by-step explanation:

Volume of a rectangular prism = base area x height

Base area = length x width

15 ft x 9 ft = 135 ft²

Volume =  135 ft² x 13 ft = 1755 ft³

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a total of $9500 is invested, part at 10% simple interest and part at 9%

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Amount invested = 9500

Total amount return means total yield = $914

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Interest for first part =  10 % times x = 0.10x

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Interest for remaining amount = 9% (9500 -x) = 0.09(9500-x)

Total interest yield is 914. Now we frame an equation

0.10x + 0.09(9500-x) = 914

0.10x +855 - 0.09x = 914 (combine like terms)

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0.01x = 59 ( divide both sides by 0.01)

So x = 5900

$5900 is invested in 10% simple interest

9500 - 5900 = $3600 is invested in 9% simple interest


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