Your family plans to buy a new air conditioner. They can buy the Super Cool X1400 for $500, or they can buy the Efficient Energy X2000 for $1200. Both models will cool your home equally well, but the Efficient Energy model is less expensive to operate. The Super Cool X1400 will cost $60 per month to operate, while the Efficient Energy X2000 costs only $40 per month to operate.
write an equation to represent the cost of buying and operating the efficient energy x2000.
how many months would your family have to use the efficient model to compensate for the additional cost of the original purchase
