Question 918513
The units in volumes and percents, no other information used, these need to use percents as either weight per volume
or as volume per volume.


The first question about how much of the two solutions is throughly discussed in this lesson:
<a href="http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev">http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev</a>
http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev


The "last" question about how much of one material when the other material quantity is known'
is thoroughly discussed in this lesson:
<a href="http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev">http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev</a>
http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev


Those lessons each also include the general solutions and the formulas for those general solutions.