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A car rental agency charges you $26 per day plus 12 cents per mile. Write a numerical expression that represents the total cost of a one-day, 160-mile trip. Which operation in your expression would you perform first?
and, with the problems below did I do them correctly?
http://i140.photobucket.com/albums/r...ss/math110.jpg
Total Cost = $26*1 +$0.12*160Quote:
Originally Posted by Ash
I will perform the multiplications first, of course.
It's not shown how you did the two problems. The answers are shown, though.
Well, the answer, -4, for the first problem is correct.
In the second problem, the answer, 4, is correct if the radical sqrt(3*7 -5) is dividing the negative 4.
As it is shown, where there is no slash or division sign between the negative 4 and the radical, thereby saying the negative 4 and the radical are being multiplied, your answer, 4, is wrong.