SOLUTION: I have a problem that I need help with. Here it is. I also show what I think the answer is. TOTAL DISTANCE. Hanson drove his rig at x mph for 3 hours, then increased his speed t

Question 7658: I have a problem that I need help with. Here it is. I also show what I think the answer is.
TOTAL DISTANCE. Hanson drove his rig at x mph for 3 hours, then increased his speed to x + 15 mph and drove for 2 more hours. Write a polynomial that represents the total distance that he traveled. Find the total distance if x = 45 mph
Here is what I did:
3x + 2(x + 15)
3x + 2x + 30
5x + 30
5(45) + 30
225 + 30
Answer: 255 miles.
Please let me know if this is correct. Thanks. All help is greatly appreciated.
Answer by drglass(89) (Show Source): You can put this solution on YOUR website!
This looks perfectly good to me.
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