John has three pieces of rope. One piece was 31 cm long, one piece was 0.33 m long, and one piece was 0.45 m long. John wants to know how much rope he has. Which statement best describes how John should figure out the amount of rope he has?

A: Add 31 + 0.33 + 0.45 John has 31.78 cm of rope.

B: Add 31 + 0.33 + 0.45 John has 31.78 m of rope.

C: Add 0.31 + 0.33 + 0.45 John has 1.09 cm of rope.

D:Add 0.31 + 0.33 + 0.45 John has 1.09 m of rope.

Question

John has three pieces of rope. One piece was 31 cm long, one piece was 0.33 m long, and one piece was 0.45 m long. John wants to know how much rope he has. Which statement best describes how John should figure out the amount of rope he has?

A: Add 31 + 0.33 + 0.45 John has 31.78 cm of rope.

B: Add 31 + 0.33 + 0.45 John has 31.78 m of rope.

C:	 Add 0.31 + 0.33 + 0.45 John has 1.09 cm of rope.

D:Add 0.31 + 0.33 + 0.45 John has 1.09 m of rope.

mertsj · Answer

You must make sure the units are the same before you can add the measurements.

anonymous · Answer

how can i do that?

mertsj · Answer

By using the fact that 1 meter = 100 centimeters

anonymous · Answer

will u do it for me plz..

mertsj · Answer

I will show you how you can convert units:

mertsj · Answer

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