Question

of a piece of metal has a mass of 7 kg. What is
the mass of of the piece of metal?​

Answer 1

Answer:

5/9 of a piece of metal has a mass 7kg

1 of a piece of metal has a mass =7/(5/9)

=63/5kg

hence 2/7 of a piece of metal has a mass

=63/5x2/7=18/5kg=3.6 kg

Explanation: