3 years ago

What is the similarity ratio of a cube with volume 1,728m3 to a cube with volume 19,683m3?

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What is the similarity ratio of a cube with volume 1,728m3 to a cube with volume 19,683m3? D! ;)

A grid shows the positions of a subway stop and your house. The subway stop is located at (6,-2) and your house is located at (3,1) what is the distance to the nearest unit between your house and the subway stop? C! ;)

May be wrong! (If I am wrong I am deeply sorry!)

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Two train leave stations 210 miles apart at the same time and travel toward each other. One train travels at 80 miles per hour w

Brrunno [24]

SOLUTION

At the same time t,

Train 1 would have covered a distance of 80t, since distance = average speed x time.

Train 2 would have covered a distance of 70t.

Now both added should give 210 miles

That is 80t + 70t = 210

150t = 210

t = 210/150

t = 1.4 hours