Question
a.u.s nickel contains 3.9g of copper and 1.2g of nickel.
how many kilograms of copper must be combined with 500 kg of nickel to make nickel coins?
how many kilograms of copper must be combined with 500 kg of nickel to make nickel coins?
Answers
copper/nickel=3.9/1.2=3.25
500*3.25=1625 kg of copper
500*3.25=1625 kg of copper
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
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
1,625
1625
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who's there
dwayne
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who's there
dwayne
dwayne the bath tub already i'm draining
1625
Correct!
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