00:01
This problem says a car rental company has two rental rates.
00:04
Rate one is $42 per day plus 14 cents per mile.
00:08
Rate two is $84 per day plus 7 cents per mile.
00:11
If you plan to rent for one day, how many miles would it take for you to, or would you need to drive to make the rate number two be less, or to be a better deal? so the thing we want to do first is write an expression to represent our cost for both rates.
00:25
For rate one, it's going to cost us $42, no matter what, per day, plus 14 cents times however many miles we drive.
00:32
So we'll label miles as x.
00:34
And for our rate two, we start off with a higher rate to rent, $84 per day, but the miles are less at 7 cents per mile, so 0 .07 times x.
00:45
So to be able to figure out when rate two is going to be the better deal, and we are paying less for rate two, what we'll do first is set our expressions equal and solve for the x value that makes them equal...