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Select the correct answerA car moves with an average speed of 45 miles/hour. How long does the car take to travel 90 miles?O A2 minutesВ.2 hoursOC.45 minutesΟ Ο ΟD45 hoursE90 minutesResetNext

Sagot :

Given data:

The average speed of the car is

[tex]S=45\text{ miles/hour}[/tex]

The distance traveled by the car is

[tex]D=90\text{ miles}[/tex]

The average speed can be expressed as,

[tex]\begin{gathered} S=\frac{D}{T} \\ T=\frac{D}{S} \end{gathered}[/tex]

Here, T is the time taken by the car.

Substituting the values in the above equation, we get:

[tex]\begin{gathered} T=\frac{90\text{ miles}}{45\text{ miles/hour}} \\ =2\text{ hours} \end{gathered}[/tex]

Thus, the time taken by the car is 2 hours, and option (B) is correct.

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