Set up equations and solve: A car dealership orders 29 vehicles. Some are SUVs and some are minivans. The SUVs cost $22,000 each and the minivans cost $16,000 for the dealer.

Question

 If the dealer pays $608,000 how much of each did he order?

Answer 1

just set up 2 equations.

1. first equation is for the quantity of vehicles purchased: S + M = 29
2. second equation is for financials: 22,000S + 16,000M = 608,000
3. Now take one of the equations, solve for one of the variables and plug it into the second equation.
4. S = 29 - M
5. 22000(29-M) + 16000(M) = 608000; use distributive property, then gather like terms and solve for (I will presume you can do this) M = 5000; therefore, S = 24,000

The process of setting up the two equations is key (make equation by "topic"; quantity vs cost). make sense?