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 2 years ago
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
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?

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Hero
 2 years ago
Best ResponseYou've already chosen the best response.0It makes sense to include the possible expressions since there is more than one way of doing this.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0For some reason I'm getting \(t = \frac{x}{25}  6.5\)

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0No typos on the possible answers.

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2\[Rate = \frac{Distance}{Time}\] \[Time*Rate = Time*\frac{Distance}{Time}\] \[Time*Rate = Distance\] \[\frac{Time*Rate}{Rate} = \frac{Distance}{Rate}\] \[Time = \frac{Distance}{Rate}\]

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0I copied and pasted the question.

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2Substitute Distance and Rate to get the Time.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0Wired, do you have an actual explanation or are you going to continue to talk in general?

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2That IS the explanation. Replace Distance and Rate and you have the answer.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0I see. I was focused too much on setting up the problem to solve for t

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0I am terrible at word problems....they give me headaches.

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2What is the Distance? What is the Rate for the trip home?

Chlorophyll
 2 years ago
Best ResponseYou've already chosen the best response.0Since the total time: 12:30  8= 6.5 hrs > Return time : total  leaving time = ....

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0x/25 should be the answer. I am not sure I just went ahead and submitted my answers.

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2That's the correct answer.

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0Yes, Chero, no one wanted to give you the answer though

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0I am too tired, taking a quick break!! I appreciate your help. I am sure I will be back in about 20 minutes!

Chlorophyll
 2 years ago
Best ResponseYou've already chosen the best response.0@Chero Take a look at my explanation!

Chero
 2 years ago
Best ResponseYou've already chosen the best response.0Thank you again! I have been helping my 15 year old son since noon today and am about fried!! LOL

Hero
 2 years ago
Best ResponseYou've already chosen the best response.0Chrorophyll, they wanted the expression for time

Chlorophyll
 2 years ago
Best ResponseYou've already chosen the best response.0That what it is: Return time = total time  start time

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2@Chlorophyll Starting time is NOT X. As per the original statement: X represents how far it is to the destination.

Chlorophyll
 2 years ago
Best ResponseYou've already chosen the best response.0"If x represents how far it is to the destination"

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2Yes, I just stated that. X is DISTANCE, not TIME.

Chlorophyll
 2 years ago
Best ResponseYou've already chosen the best response.0Oh, I misread it :")

mahmit2012
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1341622152132:dw

Wired
 2 years ago
Best ResponseYou've already chosen the best response.2@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.

mahmit2012
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1341622381026:dw
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