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caleb19moody
01.11.2019 •
Mathematics
Rosetta drove her car 160 miles in 2 hours. which of the following correctly expresses her rate as a ratio?
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Ответ:
The correct answer is,
The rate of ratio of Rosetta's car = 80 miles per hour
Step-by-step explanation:
Formula:-
Speed = Distance /Time
It is given that,Rosetta drove her car 160 miles in 2 hours.
To find the speed of car
Speed = Distance /Time
Distance = 160 miles
Time = 2 hours
Speed = 160/2 = 80 miles per hour.
Therefore the rate of ratio of Rosetta's car = 80 miles per hour
Ответ:
h = (S - 2πr²) / 2πr
Step-by-step explanation:
Since we are given that
S = 2πrh + 2πr²
Subtracting by 2πr² on both sides we get
S - 2πr² = 2πrh
Dividing by 2πr on both sides we get
(S - 2πr²) / 2πr = h
So
The final equation is
h = (S - 2πr²) / 2πr