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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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  1. 20 September, 21:51
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    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
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