Sarah is training for a bike race. She rides her bike 5 3/4 miles in 1/3 hour.What is Sarah's rate miles per hour?
2 answers:
Answer:
Step-by-step explanation:
Answer:
Sarah's rate is 17 miles per hour.
Step-by-step explanation:
we can use proportion to solve this;
Let x represent sarah's rate miles per hour
5 3/4 miles = 1/3 hour
x = 1 hour
cross-multiply
5 3/4 = 1/3 x
but 5 3/4 =
=
cross- multiply
4x = 23× 3
4x =69
Divide both-side of the equation by 4
=
(On the left-hand side of the equation, 4 at the numerator will cancel-out 4 at the denominator while on the right-side of the equation 69 will be divided by 4)
x = 17 miles
Therefore Sarah's rate is 17 miles per hour.
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Answer:
The speed of car in miles per minute is miles per minute and
The speed of car in mile per hour is 40 miles per hour,
Step-by-step explanation:
Given as :
The distance cover by car = 2 =
miles
The Time taken by car to cover distance = 3 min =
min
The speed o car in miles per minute = S miles/min
So, Speed =
Or, S = mie per min
∴ S = miles per minute
Now, Let The speed of car in miles per hour = x miles/h
So, Time in hour = ×
=
hours
So , Speed =
Or, x = miles per hours
Or, x = 40 miles per hours
Hence The speed of car in miles per minute is miles per minute and the speed of car in mile per hour is 40 miles per hour, answer