the ratio of zinc and copper in an alloy is 7:9 if the weight of copper in the alloy is 11.7 kg, find the weight of zinc in it
Answers
Answered by
386
zinc : copper = 7 : 9 : : x : 11.7
= 7/9 x/11.7
cross multiplication
= 7*11.7=9*x
= 81.9 = 9x
= 81.9/9 = x
= 9.1 = x
= 7/9 x/11.7
cross multiplication
= 7*11.7=9*x
= 81.9 = 9x
= 81.9/9 = x
= 9.1 = x
Answered by
112
hope it helps. ..........
Attachments:

Similar questions