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Mathematics 10 Online
OpenStudy (ny,ny):

A chemist wants to make 40 liters of 22.5% acid solution. She is going to make it by mixing a 10% acid and a 30% acid solution. How many liters of each will she need?

hero (hero):

x + y = 40 .10x + .30y = .225(40)

OpenStudy (ny,ny):

I got a bad number for the 30% acid when i tried it out.

OpenStudy (ny,ny):

you mean 22.5*

hero (hero):

No, you write the percent as a decimal.

OpenStudy (ny,ny):

oh yeah....

OpenStudy (ny,ny):

im studying :P

hero (hero):

What did you get for x and y?

OpenStudy (ny,ny):

doing it now...

OpenStudy (ny,ny):

y=25 x=15

hero (hero):

Looks right

OpenStudy (ny,ny):

10% acid = 15 liters 30% acid = 25 liters :D

OpenStudy (ny,ny):

thank yu :D

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