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GenaCL600 [577]
3 years ago
9

A rectangular prism has a length of 9 feet, a height of 20 feet, and a width of 4 feet. What is its volume, in cubic feet?

Mathematics
2 answers:
Crank3 years ago
7 0

Answer:

V=720ft³

Step-by-step explanation:

V=whl=4·20·9=720ft³

happy to help

Aleks04 [339]3 years ago
3 0

Answer:

720 ft^3

Step-by-step explanation:

The volume of a rectangular prism of length L, height H and width W is

V = L*W*H.

Here the volume is v = (9 ft)(20 ft)(4 ft) = 720 ft^3

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Mary has $65,000 to invest in two accounts. The first account is a private savings offering 6% annual interest and the second ac
const2013 [10]

Answer:

first account with 6% interest ( x ) = $46000

second account with 4% interest ( y ) = $19000

Step-by-step explanation:

Principal = $65000

first interest rate = 6%

second interest rate = 4%

assuming ; X = money invested in first account ,  Y = money invested in second account

hence :

( 65000 - y ) * 6% + ( 65000 - x ) * 4% = 3520

3900 - 0.06 y  + 2600 - 0.04 x = 3520

0.04 x + 0.06 y = 3900 + 2600 - 3520

0.04 x + 0.06 y = 2980 ----- ( 1)

        x + y = 65000  ------- ( 2 )

solve equation 1 and 2 simultaneously by elimination method

0.04 x + 0.06 y = 2980 ------  ( 3 )

0.06 x + 0.06 y = 3900 ------- ( 4 )

subtract equation 3 form equation 4

0.02 x  = 920 ,   hence x = $46000

therefore y = $65000 - $46000 =  $19000

6 0
3 years ago
a reflecting pool is shaped like a right triangle with one leg along the wall of a building. the hypotenuse is 9 feet longer tha
Eva8 [605]

a^2 + b^2 = c^2

9^2 + 7^2 = get the answer then find the square root of it

5 0
3 years ago
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IM SORRY BUT I NEED THIS QUESTION TOO ASAP PLEASE
Paraphin [41]

Using proportions, it is found that the amount of the novel she would have read is:

D. 14/15.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

She has finished 5/6 of the novel, and will have read more 1/10 in the next two days, hence the total amount read is given by:

\frac{5}{6} + \frac{1}{10} = \frac{25 + 3}{30} = \frac{28}{30} = \frac{14}{15}

Hence option D is correct.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

5 0
2 years ago
Solve Ax+Hy=K for x<br> Help!
denis23 [38]

Answer:

x = -\frac{Hy + K}{A}

Step-by-step explanation:

Step 1: Add -Hy to both sides.

  • Ax + Hy - Hy = K - Hy
  • Ax = -Hy + K

Step 2: Divide both sides by A.

  • \frac{Ax}{A} = \frac{-Hy+K}{A}
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3 0
2 years ago
The scale drawing at right shows the first slope of a house, the actual dimensions of the garage are 20 feet by 25 feet. All ang
ad-work [718]

Answer:

  • See below

Step-by-step explanation:

A)

<u>According to dimensions of the garage, the scale is:</u>

  • 1 in : 20 ft, as the width of the garage is 20 ft and on paper is 1 in

B)

Living room

<u>Dimensions on paper: </u>

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C)

<u>Actual dimensions: </u>

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D)

<u>The area of the living room:</u>

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<u>Cost of carpet:</u>

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4 0
2 years ago
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