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3 years ago

Solve for the indicated variable. a/b = c for b. I need help

Mathematics

1 answer:

makvit [3.9K]3 years ago

3 0

Multiply both sides by b
a=cb
divide both sides by c
a/c=b
b=a/c

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Gelneren [198K]

Answer:

I'm hoping the answer should be D. 9 units.

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3 years ago

If 8 gallons of gas cost $40, how much does 10 gallons of gas cost

insens350 [35]

8 costs 40 so 10 costs | 40 / 8 = ( 5*2=10) So your answer is 50 Dollars.

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2 years ago

Plz help me with these two questions I have no idea how to do this

viktelen [127]

(7-3+4^3/2) / (9-5)
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8 0

3 years ago

The scores on a quiz are normally distributed. The mean of the quiz is 93 and the standard deviation is 4.2. By using the Empiri

xz_007 [3.2K]

Answer:

any score that lies between 88.8 and 97.2 is within one std. dev. of the mean

Step-by-step explanation:

One std. dev. above the mean would be 93 + 4.2, or 97.2. One std. dev. below the mean would be 93 - 4.2, or 88.8.

So: any score that lies between 88.8 and 97.2 is within one std. dev. of the mean.

6 0

3 years ago

A french fry stand at the fair serves their fries in paper cones. The cones have a radius of 22 inches and a height of 66 inches

icang [17]

Answer:

The height of the new cones will be 16.5 inches.

Step-by-step explanation:

We know that,

The volume of a cone is,

$V=\frac{1}{3}\pi r^2 h$

Where, r is the radius of the cone,

h is the height of the cone,

In the original cone,

r = 22 inches,

h = 66 inches,

Thus, the volume would be,

$V_1=\frac{1}{3}\pi (22)^2(66)$

Also, for the new cone,

r = 44 inches,

Let H be the height,

So, the volume of the new cone would be,

$V_2=\frac{1}{3}\pi (44)^2(H)$

According to the question,

$V_2=V_1$

$\implies \frac{1}{3}\pi (44)^2(H)=\frac{1}{3}\pi (22)^2(66)$

$\implies H=\frac{22^2(66)}{44^2}=(\frac{22}{44})^2\times 66 = \frac{66}{4}=16.5$

Hence, the height of the new cones will be 16.5 inches.

7 0

3 years ago