This SAT math video tutorial focuses on average speed and distance rate time problems.
SAT Math Part 28 – Patreon:
SAT Math Part 28 – YouTube:
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Translating Words to Algebraic Expressions:
Words to Equations – More Problems:
Consecutive Integers Word Problems:
Age Word Problems – Past, Present, Future:
Upstream and Downstream – Problems:
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Distance, Rate, & Time – Word Problems:
Time and Work – Word Problems:
Acid Mixture Word Problems:
Percent Increase & Decrease Problems:
Percentage Word Problems:
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Ratios and Proportions – Word Problems:
Ratios and Proportions – SAT Math:
Arithmetic Sequences – Word Problems:
Venn Diagram – Word Problems:
Probability With Marbles – Word Problems:
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Final Exams and Video Playlists:
Full-Length Videos and Worksheets:
Full 8 Hour SAT Video on Patreon: https://bit.ly/3sadcH0
Printable PDF – 150 Test Questions: https://bit.ly/3hbd1Vy
Final Exams and Video Playlists: https://www.video-tutor.net/
Full-Length Math & Science Videos: https://www.patreon.com/mathsciencetutor/collections
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
I've been watching all of the videos in this playlist, and let me tell you I appreciate it so much
This is a very nice resource for some practice questions with detailed explanations, you love to see it!
Hello sir I what to watch ''Age problem'' video please grant me to watch it.
Studying for the ASTB to become a Navy pilot. Huge help we are grateful
You never show your face my brother. I call my brother because any man that helps is my Brother. Any woman that helps me is my SISTER. From heart to heart. From human being to human being. THANK YOU MY BROTHER. I watch all your videos and you are EXTREMELY HELPFUL!!!!
where did the 9 came from?
speedrunning 2 math courses to get degree in time, your vids are genuinely helping so much, thanks for posting 🙏 🙏 💛
learning more in one video than a full class in school
Now, I’m confused
A gem of a teacher! Thank you!!!!
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
The fact that my name is Ricky, I was looking crazy just now staring at my tv like wtf 😂
Elmas mal
Average speed = total distance/total time
What if one of them stops for gas though 🙁
Am i the only one doing this in grade 6
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
Thank u so mach teacher u help me
i haven't taken the SAT, this is how the test really looks like?
Why are you writing a v for speed?
Can u make an example that has 3 situations?
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
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