Distance = rate * time Word Problem, system of equations

A classic system of equation problem.

A boat can go 20 miles against the current in the same time that it can go 60 miles with the same current. The current is 4 mph. Find the speed of the boat in still water.

[rack-em-upgaming]

that was the absolute weirdest math video I have ever seen

[vascobishop]

Great tutor and good lesson but a little weird and scary

[naththemate]

"A little bit of

Joking. But this video was very helpful

[renrac]

I will never forget this video as long as I that's the point! From an old gal, thank you so much! :)

[gigimohea]

Thank you so much! I was getting really angry about how much money I'm paying to *not be taught while having a deep desire to truly learn the material. Oh how I wish I could give YOU the money I'm paying my school since you are really the one teaching me. Your videos are keeping me motivated & I really appreciate it!

[gamergirlmars]

i'm almost 30 okay and i was cracking up the entire time lol. you are a great teacher, it's almost like your energy distracted my brain from the fact that this was a math problem. I solved it in no time flat. I love researching different math videos on youtube as I am a programmer. You are my favorite so far! Keep this attitude and way of teaching for all of the age groups that you teach. People may think you are nuts in a college setting until they realize how well they are doing math after the fact!

[weirdtemple]

3:38 Mortal Kombat, not quite but Mortal Kombat!!

[ambermartin]

this made me learn and laugh. Cant really ask for more

[zelanerozespanto]

Probably the weirdest Math vid I've ever seen. Still, thanks!

[NajLahsen]

Love, love, love this! You're amazing.
Your unique style of teaching in addition to being easy to understand are basic qualities that most teachers don't have.
Thank you, thank you, thank you!!!

[brianabarlow]

lol my favorite part was when he said, "If the times are the same, then that means...the times are the same!"

[paulmandap]

I wish that you are my teacher in math!! :)

[goodjob]

Pre Algebra fun is infinite. Wonder how algebra 1 is? 😀

[lavaniadelrey]

Did you just...reference sublimes doin time at the beginning. Ok now I really love you. Check out lana del reys cover please it’s sooo good I know u have taste. Thanks for making math fun

[randomaccount]

It makes sense, somebody made a video of it!