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# Chemistry convert 16.9 cm to m?

Please tell me how you do this. I'm so lost

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- Dave PLv 57 years agoBest Answer
cm to metres

there's 100 cm in a metre

to convert cm to metres, multiply by (1m/100cm) and cancel the units:

16.9 cm * (1 m / 100 cm) = 0.169 m

Whenever you have to change units, simply write the equivalent amounts of the the starting and ending units (100 cm and 1 m in this case) as a fraction, with the unit you want to lose on the bottom and multiply the starting value by this.

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