The c+5 should represent the five more cds that he has thats more than julias
Answer: 1st unique 2nd nothing 3rd more than 1
Step-by-step explanation:
The full length of the circumference is
C = 2πr
C = 2π*100 m ≈ 628.32 m
1/3 that distance is (628.32 m)/3 ≈ 209.44 m
Maile walked about 209.4 m.
Answer:
-1
Step-by-step explanation:
the common ratio in this geometric series is -1
Answer:
1.5 km/hour
Step-by-step explanation:
d is the David's speed in still water
c is the speed of the current
Going with the current, he travels d+c km per hour.
Going against the current, he travels d-c km per hour.
d+c = (20 km)/(2.5 hours) = 8 km/hour
d-c = (20 km)/(4 hours) = 5 km/hour
Add the equations to eliminate the c terms
d+c = 8
d-c = 5
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2d = 13
d = 6.5 km/hour
c = 8-d = 1.5 km/hour
