An alloy contains 7% of copper. How many kg of alloy will contain 10.5 kg of copper? Hi
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Answer:
150kg of alloy
Step-by-step explanation:
How many kg of alloy will contain 10.5 kg of copper?
create a formula
alloy * 7 % = copper
meaning 7% of the alloy is copper
we can replace copper with 10.5kg and use variables
alloy = a
a* 7% = 10.5
7% = 7/100 = 0.07
hence:
a* 0.07 = 10.5
a = 10.5/0.07
a = 150
150kg of alloy will contain 10.5kg of copper
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