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natima [27]
3 years ago
6

If the diameter of a circle changes from 18 cm to 6 cm, how will the circumference change?

Mathematics
1 answer:
olga_2 [115]3 years ago
6 0
The circumference when the diameter is 18 = 18pi

The circumference when the diameter is 6 = 6pi

18pi/6pi=3

The circumference will become a third of what it was.

Hope this helps!
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X= number of hours would it take Jason to wash the van by himself.
2x=number of hours would it take Wendy to wash the van by herserlf.

<span>we calcaulate the fraction of  work by Jason during one hour </span>

x hours-----------------------------1 work
1 hour----------------------   fraction of work during one hour.

fraction of work during one hour=(1 hour * 1work) / x hours=1/x


we calculate the fraction of work by Wendy during one hour.
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1 hour----------------------   fraction of work during one hour.

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Simplifying

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Remove parenthesis around (10x)

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Reorder the terms for easier multiplication:

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Multiply cos * x

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Reorder the terms:

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Add '-2' to each side of the equation.

2 + -2 + 40cosx = 2 + -2

Combine like terms: 2 + -2 = 0

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Combine like terms: 2 + -2 = 0

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Solving

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Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

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Step-by-step explanation:

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