Mixture word problems: A better way!

Solve a mixture word problem with either traditional algebra or as proportion. Traditional algebra uses a system of equations. Proportion method balances the two ingredients being mixed. 3 examples with mixing liquids of different concentrations, account with different interest rates or rates of return, or items with different prices.

0:00 Intro and definition
1:05 The traditional algebra method using a system of equations
6:24 The shortcut using proportion balancing, with 3 examples.
14:15 Summary of method
15:43 Proof that the shortcut works

[vudomath]

0:01​ Intro and definiton
1:05​ The traditional algebra method using a system of equations
6:24​ The shortcut using proportion balancing, with 3 examples.
14:15​ Summary of method
15:43​ Proof that the shortcut works