Question

How much of an alloy with 30% copper must be added to 25 pounds of a second alloy which is 20% copper to create a 27% alloy?



33.85 lb

58.33 lb

391.67 lb

Answer 1

I don't understand how to work it out.

Answer 2

0.30x + 25(0.20)

Answer 3

Is that the whole problem?

Answer 4

You have to finish solving.

Answer 5

Oh, ok, thanks ;)

Answer 6

@undeadknight26 help, maybe :)

Answer 7

@-EtherealEbullience sounds like she would know this better then me mate.

Answer 8

haha ok, @undeadknight26

Answer 9

http://openstudy.com/study#/updates/4ee77257e4b023040d4be99d