how many ounces of a 13% alcohol solution and a 28% alcohol solution must be combined to obtain 45 ounces…

how many ounces of a 13% alcohol solution and a 28% alcohol solution must be combined to obtain 45 ounces of a 21% solution?
 
Do you have a similar assignment? Make your order now and get a 15% discount. Use discount code "Newclient".