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2 years ago

15

If two cars are 492.5 miles apart, the first car left at 1:00 at a constant rate of 55 mph and the second car left an hour later

and moving at a constant speed of 70 mph. What time will the two cars pass each other?

1 answer:

Mama L [17]2 years ago

8 0

Answer:

I don't know, need points

Step-by-step explanation:

Use keys on your computer maybe.

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Answer:

$V_s=85\ cm^3$

Step-by-step explanation:

Let $V_s\ and\ V_b$ be the volumes of the smaller and bigger cylinder.

The formula for the volume of a cylinder is given by :

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As the two triangles are similar, the cube of their ratio would equal the ratio of their volume i.e.

$\dfrac{V_s}{V_b}=(\dfrac{h_s}{h_b})^3\\\\\dfrac{V_s}{V_b}=(\dfrac{3}{5})^3\\\\\dfrac{V_s}{V_b}=0.216\\\\V_s=393\times 0.216\\\\V_s=84.8\\\\or\\\\V=85\ cm^3$

So, the volume of the smaller cylinder is equal to $85\ cm^3$ .

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Answer:

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Step-by-step explanation:

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ExtremeBDS [4]

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