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Alex73 [517]
3 years ago
8

What is the intersection of plane ABC and plane CDH

Mathematics
1 answer:
katovenus [111]3 years ago
8 0

The intersection of plane ABC and plane CDH is <u>line DC</u>.

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Ahmad Conan deposited 60 quarters, 53 dimes, 44 nickels, and 50 pennies into his checking account. The total of the checks he de
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Kevin, can clean a stadium in 5 hours working alone. Chris, can
LenaWriter [7]

Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

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According to the question , we have

Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

\dfrac{1}{t}=\dfrac{1}{5}+\dfrac{1}{3}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{3+5}{15}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{8}{15}\\\\\Rightarrow\ t=\dfrac{15}{8} =1.875

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t=1\text{ hour }+52.5\text{ minutes}= \text{1 hour 52.5 minutes}

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