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Ede4ka [16]
4 years ago
7

The 20-inch-diameter wheels of one car travel at a rate of 24 revolutions per minute,

Mathematics
1 answer:
nydimaria [60]4 years ago
8 0
One revolution of a wheel is equal to it's circumference:

C = πd

C: circumference
d: diameter

<u>20" wheel</u>
d = 20"
C = (20π) in/rev
v = (24 rev/min)(20π in/rev) = 480π in/min

<u>30" wheel</u>
d = 24"
C = (30π) in/rev
v = (18 rev/min)(30π in/rev) = 540π in/min

Ratio =  \frac{velocity of 30" wheel}{velocity of 20" wheel} =  \frac{v_{2}}{v_{1}}

\frac{v_{2}}{v_{1}} =  \frac{540\pi}{480\pi}  = \frac{9}{8}












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3 years ago
Carleen has 104 pieces of candy leftover from Halloween. She would like to distribute them evenly to the 8 kids on her block. Wr
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Answer:

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Step-by-step explanation:

Since we are trying to distribute it evenly, we divide 104 by 8 to get 13 pieces of candy per child.

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How can you quickly determine the number of roots a polynomial will have by looking at the equation?
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One can determine the number of roots by seeing the degree of the given polynomial.

The number of roots can be determined by just seeing the highest power of the given equation.

1) for the equation  x-4=0

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<h3>What is the polynomial?</h3>

A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtract multiplication, on,  and non-negative integer exponentiation of variables.

Let's check it by simplifying x-4=0  which implies x=4

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2) Consider a quadratic equation,

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Let's check it by simplifying using the middle term splitting method,

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Thus, the equation has two roots.

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To learn more about the polynomial visit:

brainly.com/question/2833285

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