4 years ago

Whats the limit of x as x goes to 17?

Mathematics

1 answer:

SSSSS [86.1K]4 years ago

4 0

Shouldn’t be 17, that’s the limit

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Step-by-step explanation:

Working together, E & B get 1/45 of the job done per day

Working alone, C gets 1/x of the job done per day

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$EB:\dfrac{1}{45}\qquad C: \dfrac{1}{x}\qquad EBC:\dfrac{1}{18}\\\\\\\\EB+C=EBC\\\\ \dfrac{1}{45}\ +\dfrac{1}{x}=\dfrac{1}{18}\\\\\\(45\cdot 18\cdot x)\bigg(\dfrac{1}{45}+\dfrac{1}{x}=\dfrac{1}{18}\bigg)\\\\\\.\qquad \qquad 18x+810=45x\\\\.\qquad \qquad \qquad 810=27x\\\\.\qquad\qquad \qquad \large\boxed{30=x}$

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Ratio of the ages of three children is 2:5:1. The sum of their ages is 32 years. Find the ages of the youngest and the eldest

Hoochie [10]

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Step-by-step explanation:

Ratio of the ages of three children is 2:5:1.

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