one piece of pipe 21 meters long is to be cut into two pieces, with the lengths of the pieces being in a 2:3 ratio. What are the lengths of the pieces?

Question

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Answer 1

Kaley, with a ratio of 2:3, then we have 5 total parts. 21/5 = 4.2, so 2 parts is 4.2(2) = 8.4 meters, or 8 meters and 40 centimeters, and 3 parts is 4.2(3) = 12.6 meters, or 12 meters and 60 centimeters.

 

Hope this helps!

Answer 2

2x + 3x = 21

5x = 21

x = 4.2

 

8.4 and 12.6