a.u.s nickel contains 3.9g of copper and 1.2g of nickel.

Question

how many kilograms of copper must be combined with 500 kg of nickel to make nickel coins?

Answer 1

copper/nickel=3.9/1.2=3.25

500*3.25=1625 kg of copper

Answer 2

You also can write fraction:

3.9/1.2=x/500

1.2*x=3.9*500

1.2*x=1950 Divide with 1.2

x=1950/1.2

x=1625

Answer 3

1,625

Answer 4

1625

Answer 5

knock knock
who's there
dwayne
dwayne the bath tub already i'm draining

Answer 6

1625

Answer 7

Correct!