Complete the table below.
Speed Time Distance
75 km/h 3h _________
________ 20 sec 200 m
65km/h __________ 390 km
_________ 5.5 h 473 km
9.3 m/s 86 sec ______________
Activity 2
a. Vio rides on his motorcycle 55 kilometers in 5 ½. What is his average speed in kilometers per hour?
b. Gerchel took a two-hour bicycle trip. If she traveled 31 kilometers. What was her average speed?
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Answer:
Activity 1:
Activity 2:
Step-by-step explanation:
Activity 1:
1.
s = 75 km/hr
t = 3 hr
d = ?
d = s × t
= 75 km/hr × 3 hr
d = 225 km
2.
s = ?
t = 20 sec
d = 200 m
s = d / t
= 200 m / 20 sec
s = 10 m/sec
3.
s = 65 km/hr
t = ?
d = 390 km
t = d / s
= 390 km / 65 km/hr
t = 6 hr
4.
s = ?
t = 5.5 hr
d = 473 km
s = d / t
= 473 km / 5.5 hr
s = 86 km/hr
5.
s = 9.3 m/sec
t = 86 sec
d = ?
d = s × t
= 9.3 m/sec × 86 sec
d = 799.8 m
Activity 2:
1.
s = ?
d = 55 km
t = 5 1/2 hr
s = d / t
= 55 km / 5.5 hr
s = 10 km/hr
2.
s = ?
d = 31 km
t = 2 hr
s = d / t
= 31 km / 2 hr
s = 15.5 km/hr