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Misha Larkins [42]

3 years ago

5

Frances wants to paint a rectangular wall that has a width of 8 feet and a height of 9 feet. She has a quart of paint that will

cover 85 square feet. What is the area of the wall? Does frances have enough paint

1 answer:

Soloha48 [4]3 years ago

5 0

Answer: 72 feet is the area

she does have enough to use all of it she will have 13 feet left over

Step-by-step explanation:

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One fifth of a number plus three times the number is equal to 42 Moré than twice the number. Whats the number

riadik2000 [5.3K]

Answer:

35

Step-by-step explanation:

Let number = x

(1/5 of x) + (3 * x) = 42 + (2 * x)

x/5 + 3x = 42 + 2x

1/5x + 3x - 2x = 42

1 1/5x = 42

6/5 x = 42

x = 42 ÷ 6/5

x = 42 * 5/6

x = 210 / 6

x = 35

The number is 35

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3 years ago

When the input x, is -5 K=6x+100

yanalaym [24]

Answer:

the answer is 70

Step-by-step explanation:

just do 6(-5)+100=70

hope this helps

4 0

3 years ago

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In ΔJKL, j = 9.6 inches, k = 6.4 inches and l=8.4 inches. Find the measure of ∠K to the nearest degree.

mrs_skeptik [129]

Answer:

41

Step-by-step explanation:

delta math

5 0

3 years ago

Which of the following equations will yield the surface area of cylinder?

katovenus [111]

Answer: $A=2\pi rh+2\pi r^2$

8 0

3 years ago

Six pyramids are shown inside of a cube. The height of the cube is h units. Six identical square pyramids can fill the same volu

MAXImum [283]

Answer:

(A)The height of each pyramid is One-half h units.

Step-by-step explanation:

Height of the Cube = h units

Volume of the Cube $=h^3 $ cubic units$

If Base of the cube =Base of the square pyramid

Base of the square pyramid = h units

$\text{Volume of a Pyramid}=\dfrac{1}{3}*Base Area*Height$

$\text{Volume of One Pyramid}=\dfrac{1}{3}*h^2*Height$

$\text{Volume of Six Pyramids}=6*\dfrac{1}{3}*h^2*Height\\=(2h^2*Height)\:cubic\:units$

Since Volume of the Cube = Volume of Six Square Pyramids

Then:

$2h^2*Height=h^3\\Height=\dfrac{h^3}{2h^2} \\$Height of each pyramid =\dfrac{1}{2}h \:Units$

5 0

3 years ago

Read 2 more answers