## Chero Group Title A person leaves home at 8:00 a.m. and drives to a destination at a rate of 40 mph. The person returns at a rate of 25 mph and arrives at 2:30 p.m. If x represents how far it is to the destination, then which of the following expressions represents the amount of time to make the return trip? 2 years ago 2 years ago

1. Hero Group Title

It makes sense to include the possible expressions since there is more than one way of doing this.

2. Chero Group Title

okay...one sec.

3. Chero Group Title

a) 25x b) 6.5-x c) x/25

4. Hero Group Title

For some reason I'm getting $$t = \frac{x}{25} - 6.5$$

5. Hero Group Title

Which is none of those

6. Hero Group Title

Chero, is there a typo?

7. Chero Group Title

let me check...

8. Chero Group Title

No typos on the possible answers.

9. Wired Group Title

$Rate = \frac{Distance}{Time}$ $Time*Rate = Time*\frac{Distance}{Time}$ $Time*Rate = Distance$ $\frac{Time*Rate}{Rate} = \frac{Distance}{Rate}$ $Time = \frac{Distance}{Rate}$

10. Chero Group Title

I copied and pasted the question.

11. Wired Group Title

Substitute Distance and Rate to get the Time.

12. Hero Group Title

Wired, do you have an actual explanation or are you going to continue to talk in general?

13. Wired Group Title

That IS the explanation. Replace Distance and Rate and you have the answer.

14. Hero Group Title

I see. I was focused too much on setting up the problem to solve for t

15. Chero Group Title

16. Chero Group Title

I am terrible at word problems....they give me headaches.

17. Wired Group Title

What is the Distance? What is the Rate for the trip home?

18. Chlorophyll Group Title

Since the total time: 12:30 - 8= 6.5 hrs -> Return time : total - leaving time = ....

19. Chero Group Title

x/25 should be the answer. I am not sure I just went ahead and submitted my answers.

20. Wired Group Title

21. Hero Group Title

Yes, Chero, no one wanted to give you the answer though

22. Chero Group Title

I am too tired, taking a quick break!! I appreciate your help. I am sure I will be back in about 20 minutes!

23. Chlorophyll Group Title

@Chero Take a look at my explanation!

24. Chero Group Title

Thank you again! I have been helping my 15 year old son since noon today and am about fried!! LOL

25. Hero Group Title

Chrorophyll, they wanted the expression for time

26. Chlorophyll Group Title

That what it is: Return time = total time - start time

27. Chlorophyll Group Title

Starting time = x

28. Wired Group Title

@Chlorophyll Starting time is NOT X. As per the original statement: X represents how far it is to the destination.

29. Chlorophyll Group Title

"If x represents how far it is to the destination"

30. Wired Group Title

Yes, I just stated that. X is DISTANCE, not TIME.

31. Chlorophyll Group Title

32. mahmit2012 Group Title

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33. Wired Group Title

@mahmit2012 Yes, you solved for X, but the question didn't want X. @Chero Please close the thread and award a medal if you deem so.

34. mahmit2012 Group Title

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