TRANSLATE INTO EQUATION: (no need to solve)
A chemist needs to mix 15% acid solution with a 25% acid solution to obtain a 28 liter mixture consisting of 18% acid.

Question

TRANSLATE INTO EQUATION: (no need to solve)
A chemist needs to mix 15% acid solution with a 25% acid solution to obtain a 28 liter mixture consisting of 18% acid.

yolomcswagginsggg · Answer

answer is=i don't know

anonymous · Answer

Haha okay :)

yolomcswagginsggg · Answer

sorry this equation  is way to hard!

imstuck · Answer

Here it is:
.15x + .25(28-x) = 28(.18)

imstuck · Answer

I made a table, but since you don't need it solved, then going through the whole process of setting up the table is not something you want.  You need to know how to do this, though.

anonymous · Answer

no not too too hard
if you call the amount of 15% solution $x$ then since the total is 28, the amount of 25% solution must be $28-x$
then since $18\%$ of 28 is $5.04$ you can use 
$$.15x+.25(28-x)=5.04$$

anonymous · Answer

oh, what @IMStuck said

imstuck · Answer

what @satellite73 said!  Good job!  Those are hard, btw.

anonymous · Answer

THANK YOU SO MUCH @IMStuck and @satellite73  ! :)