Michael has a tug-of-war rope that is 15 meters long. How many centimeters long is the rope?

Question

Gianna Caruso · Accepted Answer

#color(green)("15 metres = 1500 centimetres")#

It takes 100 centimetres to make 1 metres

#color(brown)("Expressing this as a ration we have:")#

#("centimetres")/("metres") ->100/1 -=("? centimetres")/15#

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #color(brown)("Multiply by 1 and you do not change the value. However, 1 comes in")##color(brown)("many forms.")#

#("centimetres")/("metres") ->(100/1color(magenta)(xx1)) -=("? centimetres")/15#

#("centimetres")/("metres") ->(100/1color(magenta)(xx15/15)) =("? centimetres")/15=1500/15#

#color(green)("So 15 metres = 1500 centimetres")#

Julian Avila · Answer

#15 m = 15 xx 100 = 1500cm#

"cent" refers to 100. (century = 100 years, 100c = $1) A 'centenarian' reaches 100 years old.

In the SI or metric system, there are 100 centimeters in 1 metre.

If you change a number to a smaller unit, the number gets bigger.

#15 m = 15 xx 100 = 1500cm#

Aurora Arias · Answer

undefined To convert meters to centimeters, multiply by 100 because there are 100 centimeters in 1 meter. So, to convert 15 meters to centimeters:

$$ 15 \text{ meters} \times 100 = 1500 \text{ centimeters} $$

Therefore, Michael's tug-of-war rope is 1500 centimeters long.