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Nezavi [6.7K]
2 years ago
6

Calculate the radius of a circle if it’s circumference is 37.7cm

Mathematics
1 answer:
Eddi Din [679]2 years ago
4 0
Circumference = 2\pir

Solve for r.

2\pir = 37.7
Divide both sides by 2.

\pir = 18.85
Divide both sides by \pi.

r = 6

The radius is 6 cm.
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Step-by-step explanation:

the answer is 13 when we evaluate it

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10. Suppose y varies directly as x, and y = 9 when x = 3/2. Find y when x = 1
pogonyaev

Answer:

y = 6

Step-by-step explanation:

We need to interpret the question

y varies directly as x

y varies x

To equate it, we need to add a constant K

y = K/x

Using the information we are provided with

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insert into

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To get K, divide through by 3

3K/3 = 18/3

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6 0
3 years ago
You buy 4 bags of sand and 3 bags of pea gravel for $24. In a second purchase (at the same prices), you buy 2 bags of sand for $
Kazeer [188]

Answer:

x = $3

y = $4

Step-by-step explanation:

We need to know the prices of gravel and peas. We can find the price by using equations and graphing them.

Let X be the price of the sand

Be and the price of pea gravel

In the first purchase we have:

4x + 3y = 24

In the second purchase we have

2x = 6

Both relations represent the equation of a line. In the graphic shown, these lines are drawn. In this case the interception between both lines represents the price of each product, and the solution of the problem. You can see that the lines intersect at point (3 4). This means that the price of each bag of sand is $ 3, and the price of a bag of pea gravel is $ 4.

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3 years ago
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Tpy6a [65]

Answer:

Volume is 80 cc

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Step-by-step explanation:

Volume = l*w*h = 4*4*5 = 80 cubic centimeters

192 skittles / 80 cubic centimeters is the ratio. You have to simplify it though.

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The volume of a skittle is 80 cubic centimeters/192 skittles = .416 cm^3/skittle

7 0
3 years ago
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