Asked by BLANK

Brass is an alloy formed from copper and zinc in the ratio 3:2, based on weight. If 120g of copper is needed for a certain piece of brass, how much zinc will be needed?
Answered by Ms. Sue
3/2 = 120/x

Cross multiply and solve for x.

Answered by Lucy
Nfckg2495;
Answered by never mind
i don't have an answer i just have question,

All the members of a construction crew work at the same pace. Four of them working together are able to pour concrete foundations in 32 hours. How many hours would this job take if the number of workers decreased 2 times.

i am not sure how to solve this but i think that one off you will.
Answered by Jim Thorpe
Ms. Sue is wrong. The ansewer is x=4
Answered by Vince
80
Answered by Anonymous
it is 80g
Answered by Kawaii J
The correct answer is 80g.
Answered by Ms. Sue
jeez a weeza im sorry jim thorpe you don't gotta be so rude
Answered by Hello
Ms. Sue is actually right.
Answered by AimoPotato
80 grams
Answered by urmumisfat
it's 80 grams you fat loads of pop
Answered by UrMum
80g is the answer.

Ratio: 3 : 2
Logic: 120 : 80
Answered by Some Kid
It is 80 grams.

3x=120
x=40
2∙40= 80 grams
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