Average Speed & Distance Rate Time Problems - SAT Math Part 27 

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Hello people, those who are new and are trying to learn but cannot get it, I have simplied this for you: Calculating the Distance If you know the speed(s) and time(t), you can find the distance traveled using the formula D = st Ex: if a car travels at a speed of 60 km/h. For 2 hours, the distanced traveled is: D = 60 * 2 D = 120 Calculating Speed If you know the distance (D) and the time (t), you can find the speed using the formula s = D/t Ex: If a cyclist travels 80 km in 4 hours, the speed is: s = 80/4 s = 20km/h Calculating Time If you know the distance (d) and the speed(s), you can find the time using the formula t = D/s Ex: If a person walks at a speed of 5m/s and covers a distance of 100 meters, the time taken is: t = 100 / 5 t = 20 seconds Why don't we try answering one of the questions in the video? 89) Lauren and Ricky are driving toward each other at a rate of 40 mph and 50 mph respectively. If they are currently 360 miles apart, how many hours will it take for them to pass each other? To calculate the time, all we need is the speed or velocity and the distance, then we can apply the formula T = D/s T = 360 / 40 + 60 T = 360 / 90 T = 4

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*learning more in one video than a full class in school*

If you’re taking the asvab u need this video

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Tysm! this actually helped me and Im goana have a quiz on this next saturday and I needed something like this. Thanks apperciate it:)

A gem of a teacher! Thank you!!!!

Studying for the ASTB to become a Navy pilot. Huge help we are grateful

If I were Luke I'd consider working remote or working somewhere else. a 2-3 hour commute for work! lol but awesome and helpful video though

you made 89 unnecessarily difficult laurel's distance in 1 hr + ricky's distance in 1 hr = 90 90/ 360 = 4 it is more simple

Thank u so mach teacher u help me

What if one of them stops for gas though :(

Where did ten come from?

Average speed = total distance/total time

Where did you get the 10 from ,on the first question ? I am confused 😢

ITS SHOULDN'T BE 4HRS BECAUSE THE QUESTION IS AT HOW MUCH TIME THEY WILL PASS EACH OTHER YOU HAVEN'T ADDED THE LENGTH OF TRAINS

Hello sir, the last question you added rate/velocity. Those were not distance which ought to be equal.

The fact that my name is Ricky, I was looking crazy just now staring at my tv like wtf 😂

Question: can you apply this to a business when it comes to projecting how long it would take to reach a certain amount of sales???... or apply this to any goal someone is trying to reach?? Just curious?

i haven't taken the SAT, this is how the test really looks like?

where did the 9 came from?

Why divide 90 & 360 by 10? Why 10? Why not 20 or any other number ? How you got to conclude 10 was the best choice ? 😵‍💫

Can u make an example that has 3 situations?

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You can just do 360 divide by 90 because 40+50 is 90 miles and they are 360 miles a part so simply the answer 4 you made it so complicated 😂😂😂

Who else is writing the may sat?

were did the ten come from?

Now, I’m confused

Why are you writing a v for speed?

you over complicate it

7:35 why can't we calculate the sum then divide it by two? it's going to equal 65 which is close to the right answer

I don't get it

Am i the only one doing this in grade 6

confusing.

Elmas mal

all of your stuff you over complicate... my methods are shorter and faster pls lurn better methods