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Read each problem carefully.
1. Ysabel walks 18 m in 1 ½ hours. What is her walking speed?
2. A car travels at 260 km in 8 hours. What is the average speed of the car?
3. Lairus must travel 100 km, if he drives at 40 km per hour how long does his journey take?
Read each problem carefully.
1. Ysabel walks 18 m in 1 ½ hours. What is her walking speed?
2. A car travels at 260 km in 8 hours. What is the average speed of the car?
3. Lairus must travel 100 km, if he drives at 40 km per hour how long does his journey take?
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Answer:
1.s = 12 m /hr
2.s = 32.5 km/hr
3.t = 2 1/2 hr
Step-by-step explanation:
Formulas:
speed = distance / time
distance = speed × time
time = distance / speed
1.
d = 18m
t = 1 1/2 hrs
s = ?
s = 18m / 1 1/2 hr
s = 12 m/hr
2.
d = 260 km
t = 8 hrs
s = ?
s = 260km / 8 hr
s = 32.5 km/hr
3.
d = 100 km
s = 40 km/hr
t = ?
t = 100 km / 40 km/hr
t = 2.5 (2 1/2) hr
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