Question

A certain piece of copper wire is determined

to have a mass of 2.00 per meter.
How many cenimeters of the wire woold
be needed to provide 0.28 copper?

Answer 1

14

Explanation:

mass of 100 centimeters of copper wire is
`2.00`

so, mass of 1 centimeter of copper wire will be
`(2)/(100)`

hence, 14 centimeters of copper wire will provide .28 copper