word problems and am in need of some help.

[reggie12]

solution A is 50% acid and solution B is 80% acid. how much of each should be used to make 100 milliliters of a solution that is 68% acid. solve using one variable and two variable

 

[stapel]

solution A is 50% acid and solution B is 80% acid. how much of each should be used to make 100 milliliters of a solution that is 68% acid. solve using one variable and two variable

Since you are unable even to get started, please try refreshing with some online lessons, such as are in this list.

Once you've learned the basics for one-variable solutions, please attempt the exercise. If you get stuck, you can then reply with a clear listing of your efforts so far. Once we've got one-variable solutions out of the way, we can get you started on systems of equations, so you can learn how to do two-variable solutions.

Thank you!

 

[Deleted member 4993]

solution A is 50% acid and solution B is 80% acid. how much of each should be used to make 100 milliliters of a solution that is 68% acid. solve using one variable and two variable

Start with naming your variables according what you needed to find.

Let

The volume of A (in mL) needed for 100 mL of mixture = A

then

The volume of B needed for 100 mL of mixture (assuming no volume change during mixing operation) = 100 - A

Now continue....

 

[mmm4444bot]

Hi Reggie:

Please take time to also read the forum guidelines; here's a link to the summary page.

(Links for the complete rules and guidelines appear near the bottom of the summary page.)

Thank you! :cool: