An alloy is composed of nickel, zinc, and copper in a ratio of 7:2:9. How many kilograms of each metal are needed to make 3.6 kg of this alloy?

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Mathematics

20 September, 21:24

An alloy is composed of nickel, zinc, and copper in a ratio of 7:2:9. How many kilograms of each metal are needed to make 3.6 kg of this alloy?

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Answers (1)

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Josue Peck · Answer 1

Nickel = 1.8 kg

Zinc = 0.4 kg

Copper = 1.8 kg

Step-by-step explanation:

7:2:9

7=nickel

2=zinc

9=copper

7+2+9=18

18*2=36

7*2=14 2*2=4 9*2=18

Divide by 10

14:10=1.4 4:10=0.4 18:10=1.8

1.8+1.4+0.4 = 3.6

1.8=nickel

0.4=zinc

1.8=copper