This video tutorial reviews solving math problems involving distance, time, and speed using a triangle method. It covers various examples, including cycling, train journeys, car travel, running, beetle movement, Earth's rotation, whale swimming, and a coach's speed limit. Each problem demonstrates how to identify given information, choose the correct equation, and solve for the unknown variable.

What is the first step in solving problems involving distance, time, and speed using the triangle method?

• Convert all units to the same system

• Cover up the variable you are solving for

• Identify the units of the given information

• Multiply all the given values

If you have distance and time, and you need to find speed, what operation should you perform?

• Multiply distance by time

• Divide distance by time

• Add distance and time

• Subtract time from distance

A girl cycles for 3 hours at a speed of 40 km/h. How far did she travel?

• 80 km

• 120 km

• 60 km

• 100 km

A train travels at 30 mph and covers 240 miles. How long did it take?

• 10 hours

• 12 hours

• 8 hours

• 6 hours

Mark left at noon and traveled 300 miles at 45 mph. Did he make it home by 6 PM?

• Yes, he arrived at 6 PM

• No, he arrived at 7 PM

• No, he arrived at 8 PM

• Yes, he arrived at 5 PM

John runs 100 meters in 10.6 seconds. What was his speed?

• 11.2 m/s

• 10.6 m/s

• 8.5 m/s

• 9.43 m/s

Tags

NGSS.MS-PS3-1

A beetle travels 108 cm at 9 cm/s. How long did it take?

• 10 seconds

• 15 seconds

• 9 seconds

• 12 seconds

The Earth spins 25,992 miles in one day. What is its speed?

• 1,083 miles per hour

• 1,200 miles per hour

• 1,200 miles per day

• 1,083 miles per day

A whale swims at 8 m/s for 17 seconds. How far did it travel?

• 136 meters

• 144 meters

• 152 meters

• 128 meters

A coach travels 576 km in 6 hours. Did it break the speed limit of 90 km/h?

• No, it traveled at 86 km/h

• Yes, it traveled at 96 km/h

• No, it traveled at 90 km/h

• Yes, it traveled at 100 km/h