Posted by **Jason P** on Thursday, July 23, 2009 at 4:14pm.

a chemist has a solution that is 20 percent alcohol by volume. which of the following expressions represents the percent of alcohol by volume when m litersof the solution is mixed with h liters of pure alcohol and p liters of water?

a) 20(m+h+p)%

b) 20(m+h)/m+h+p)

c)20?h+p

d) 20m/h+p

e) 20m+100h/m+h+p

please explain

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