An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin How many pounds of the second alloy must be added to the fi

Question

An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin How many pounds of the second alloy
must be added to the first to get a 12% muture?
500

in progress 0
Quinn 3 weeks 2021-09-08T04:12:05+00:00 1 Answer 0

Answers ( )

    0
    2021-09-08T04:13:39+00:00

    Answer:

    30 pounds

    Step-by-step explanation:

    Amount of tin in first alloy + amount of tin in second alloy = amount of tin in mixture

    0.15 (20) + 0.10 x = 0.12 (20 + x)

    3 + 0.10 x = 2.4 + 0.12 x

    0.6 = 0.02 x

    x = 30

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )