Lianborlasaviz
Answered

Evaluation Calculate speed, distance, and time. 1. Janet drives her car and covered a distance with a speed of 75 km/h in 3 1/2 hours. Find the distance traveled. 2. A car travels 360 km in 4 hours. What is its speed? 3. Joseph drives at 140 km in 2 hours. Calculate his speed in km/h. 4. A police officer drives his car with a constant speed of 80 miles per hour. How far can he travel in 24 hours? 5. Dennis drives his car at an average speed of 80 km/h for 4 hours. How far did he travel?​

Sagot :

Asawa12viz

1. 265.5 km

Formula:

d=speed x time

given:

speed- 75km/h

time- 3 1/2 hours or 3.5 hours

asked=distance?

solution:

d=(75km/h)(3 1/2)= 265.5km

2. 90km/h

Formula:

s=distance ÷ time

given:

distance- 360km

time- 4 hours

asked=speed?

solution:

s=360km ÷ 4 hours= 90km/h

3. 70km/h

Formula:

s=distance ÷ time

given:

distance- 140km

time- 2 hours

asked=speed?

solution:

s=140km ÷ 2 hours= 70km/h

4. 1920mi / 3089.94km

Formula:

d=speed x time

given:

speed- 80 mph

time- 24 hours

asked=distance?

solution:

d= (80 mph)(24 hours)= 1920mi / 3089.94km

5. 320km

Formula:

d=speed x time

given:

speed- 80km/h

time- 4 hours

asked=distance?

solution:

d=(80km/h)(4 hours)= 320km

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