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chubhunter [2.5K]
1 year ago
9

If Melinda wanted to build a patio in her backyard that was 14 feet long, 6 feet wide

Mathematics
1 answer:
JulsSmile [24]1 year ago
6 0

The volume of aggregate that she needs to build the patio is 13.18 ft^3

<h3>How many cubic feet of aggregate would she need to build the walkway?</h3>

We know that the backyard is 14ft long, 6 feet wide and 4 inches deep.

Rememeber that:

1ft = 12 in

Then:

4 in = (4/12) ft = (1/3) ft

Then the volume of the backyard is:

V = (14ft)*(6ft)*(1/3 ft) = 28ft^3

Now we know that we have a mix of 4 parts aggregate to 4.5 parts loose cement that need to fill these 28 cubic feet.

Note that:

4 + 4.5 = 8.5

How many times we have 8.5 in 28?

28/8.5 = 3.294

Now for each of these we have 4 parts of aggregate, then the volume of aggregate that we need is:

4*3.294 ft^3 = 13.18 ft^3

The volume of aggregate that she needs to build the patio is 13.18 ft^3

If you want to learn more about volumes:

brainly.com/question/1972490

#SPJ1

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Answer:

13 1/3 Hours

Step-by-step explanation:

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2 years ago
A radio tower has a 64 ft Shadow cast by the sun. If the angle from the tip of the shadow to the top of the tower is 78.5°. what
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Step-by-step explanation:

right-angled triangle, and law of sine (for any type of triangles) :

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where the sides and the correlated angles are always opposite from each other.

and we know that the sum of all angles in a triangle is always 180°.

so, the angle at the foot of the radio tower is 90°.

the angle from the top of the shadow to the top of the tower is 78.5°.

so, the third angle (at the top of the tower) is

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f(x)=2,459(0.92)^t

Using the information given above, complete the following statements. The percent change is %. The percent change represents .

f(x)=2,459(0.92)^t

Given equation is an exponential function and in the form of f(x) = a(1-r)^x

Where 'a' is the initial population

'r' is the decay rate

'x' is the time

f(x) = a(1-r)^x

Given function is f(x)=2,459(0.92)^t

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r = 1 - 0.92

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Percentage change represents the decay rate.

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3 years ago
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