MEDAL to whom ever can answer this question.

Question

anonymous · Answer

attachment

anonymous · Answer

@AlexandervonHumboldt2

mathmale · Answer

Hailey:  Please ask for guidance, not answers.  Share your work, ask for feedback.

anonymous · Answer

So I started off by thinking that I would have to do 220t+250t=1880 but then I get 470t=1880, and then it is t=4 and that is obviously incorrect.

alexandervonhumboldt2 · Answer

s/(v1+v2)=1880/(220+250)=4

alexandervonhumboldt2 · Answer

everything is correct

anonymous · Answer

Haha @mathmale  I was just doing that. Sorry for not being clear.

alexandervonhumboldt2 · Answer

plus sign is because trains are traveling in opposite direction.

mathmale · Answer

Yes, and sorry for messaging you when you were already about to share your work.

alexandervonhumboldt2 · Answer

now multiply the speed of lian's train by time

alexandervonhumboldt2 · Answer

s=v*t=250*4=?

anonymous · Answer

np @mathmale  Okay, so that is 1000, what next?

anonymous · Answer

...that's the answer isn't it. Yup. Okay so why did I multiply the speed of Lian's train by time, how would I have known to do that? @AlexandervonHumboldt2

mathmale · Answer

Train's speed is a rate (miles/hour) and duration of travel is represented by t (time in hrs).  Note that multiplying these together results in distance (miles).
\
d = r t    (distance equals rate times time).

anonymous · Answer

@everybody try to resend the attachment

anonymous · Answer

Train's speed is a rate (miles/hour) and duration of travel is represented by t (time in hrs).  Note that multiplying these together results in distance (miles).
\
d = r t    (distance equals rate times time) i got it now

anonymous · Answer

@mathmale  Thanks I had forgotten that part.  @stargirl101303 The question has already been solved with some help, and I am no longer in need of assistance, thank you though for finding this question and looking at it.

mathmale · Answer

Great.