Answer:
Step-by-step explanation:
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest
Answer:
1 3/7
Step-by-step explanation:
1 5/7 * 5/6
12/7 * 5/6
2/7 * 5/1
10/7*1
10/7
1 3/7
Answer:
he weights 4.53 kilograms!
Step-by-step explanation:
X should be 13 not sure about y
Answer:
r=21
Step-by-step explanation:
r-15=6
r=6+15
r=21
