Question

question number | problem | numerical answer | units of measurement
2 | a car travels 9.7-miles north and then 6.2-miles south. what distance does the car travel? (answer in miles) | |
6 | a car travels 9.7-miles north and then 6.2-miles south. what is the magnitude of the car’s displacement? (answer in miles) | |
10 | an ostrich can travel 16.2-m in 5.1-s. what is the average speed of the ostrich? (answer in m/s) | |
14 | a runner can average 10-m/s. how far does this runner run in 8.1-s? (answer in m) | |
18 | how long does it take a bicyclist to travel 115-miles at an average speed of 26-mph? (answer in hours) | |
22 | a ant can travel 2.7-miles in 8.4-hours. what is the speed of the ant? (answer in mph) | |

Explanation:

Step1: Sum total distance

$9.7 + 6.2 = 15.9$

Step2: Subtract opposite directions

$9.7 - 6.2 = 3.5$

Step3: Divide distance by time

$\text{Speed} = \frac{16.2}{5.1} \approx 3.18$

Step4: Multiply speed by time

$10 \times 8.1 = 81$

Step5: Divide distance by speed

$\text{Time} = \frac{115}{26} \approx 4.42$

Step6: Divide distance by time

$\text{Speed} = \frac{2.7}{8.4} \approx 0.32$

Answer:

Question Number	Numerical Answer	Units of Measurement
6	3.5	miles
10	3.18	m/s
14	81	m
18	4.42	hours
22	0.32	mph