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3 years ago

The radius of a car wheel is 12 inches. How far will the car travel and 15 revolutions of the wheel?

1 answer:

7 0

R = 12 inches, the radius of the wheel.

The circumference of the wheel is
2πr = 2π(12) = 24π inches.

WHen the wheel makes 15 revolutions, the car will travel 15 times the circumference, which is
15*(24π) = 360π inches = 1131 inches.

Answer: 1131 inches

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Answer:

Standard Form: x^2 + 10x + 24

Step-by-step explanation:

In order to solve this, you would have to find the area of ALL of the shapes provided:

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She can only fill 10 pages completely.

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3 years ago

In a certain chemical, the ratio of zinc to copper is 4 to 17 . A jar of the chemical contains 663 of copper. How many grams of

Vladimir79 [104]

Answer:

The jar contains 156 grams of zinc

Step-by-step explanation:

Ratios

Let's call

Z=gr of zinc

C=gr of copper

We know the ratio between them in a certain chemical is:

$\displaystyle \frac{Z}{C}=\frac{4}{17}$

The jar of the chemical contains C=663 gr of copper. Calculate the grams of zinc by solving the above relation for Z:

Multiplying by C:

$\displaystyle Z=\frac{4}{17}\cdot C$

Substituting the value of C:

$\displaystyle Z=\frac{4}{17}\cdot 663$

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