The ratio of zinc to copper is 3:19,
if theres 741 copper how much zinc is there?

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

than do 23.50 times 18 and then divide your answer by 100 than you will get x.