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Answer: Her average speed is 15 miles per hour.

Step-by-step explanation: To find her average speed simply divide 45 by 3.

45/3 = 15 miles per hour.

Lets use a ratio to check our answer.

15:1

30:2

45:3

So her average speed is 15 miles per hour.

The average speed is 15 miles per hour.

Given that,

  • A cyclist cycles a distance of 45 miles in a time of 3 hours.

Based on the above information, the calculation is as follows:

[tex]Speed = Distance \div time\\\\= 45 miles \div 3 hours[/tex]

= 15 miles per hour

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