Algebra Word Problem: Distance, Rate, and Time

I do an example about finding the speed of the current of stream!

[patrickjmt]

@venero9 yep, always a few steps left out in the answer keys. always nice to see someone go through it all!

[PaulBilski]

I was about to have a meltdown, then this... this right here saved me..

[venero]

Thanks for the video. I was really stumped with this equation in my mathbook. The answer key only tells you so much. Working through it is priceless.

[oreion]

Thank You. Whenever I watch your videos, you always drive the point home! =D

[dgross]

So all i did was take 10 mph and multiplied it by 5 hours as rate times time = d. and i got 50miles. then i added up the two distances of 24 + 24 and got 48. 50-48= 2miles. Distance is directly proportional to speed so long as the time is constant which in this case it is. So i got my answer in about 3 or 4 steps lol. Not saying i'm better than you, but common sense can be used to solve most of these problems

[GooseDood]

Wow this was so helpful, my Algebra 2 teacher isn't very clear when teaching so it's nice to be able to rewind here. She also skips steps very often and it's confusing. Thanks a lot.

[marianml]

patrick! i got exempted in algebra because of you... :)) thank you so much for your BIG help!

[katierobey-bhamani]

thank you this is the exact problem I was struggling with thank you!! test tomorrow!!

[patrickjmt]

@iranianboy123 they are tricky since they are not mechanical. they always take a bit of time to sort out.

[mandingo]

hey, this was good tutorial. for GRE word problems with an added variable, and quadratic expression

Thanks

[cabrera]

Thank you so much for posting this video this is so helpful :) You're amazing!

[iranianboy]

You make it look soooo easy man im struggling with world problems like no other thing in the world

[gellybelly]

That's a nice twist on a d=rt problem. Great explanation too.

[rdandlong]

Thank you Pat. Yes, a more simplified version of D=R.T for those of us with brains that have slow memory.

[daydreamer]

Thanks for the vid. I admit that im too slow when it comes to numbers but thank you for real. I think Im loving math already <3 :)

[brco]

I'm a straight A student whose doing multivariable calculus and I still can't do any of these types of problems. Thanks for clearing it up!

[bassman]

I appreciate this video very much; it is done quite well and also it is explained well. This is a kind of problem if you mess up one step, your done, and you make it easy. Thanks!
Algebra 1 student

[jitterbop]

That was fun to watch. D=r(t) is one of my favs.

[thevanamacha]

Omg! You just totally saved my mathematically challenged life. Thank you for explaining the key to d = r . t  :)

[patrickjmt]

learning to read a math textbook is a fine art i think; i had to get used to them as well.
however, KEEP READING! in my opinion, it is one of the single best things i did.
i mean, in what class beside math (the hard one) would someone not read the book (duh); but i think tons of people do not (most in fact).