mary ran at a steady speed in a 10-mile race. her finish time was 2 hours. mary can bike the same distance…

mary ran at a steady speed in a 10-mile race. her finish time was 2 hours. mary can bike the same distance in \\(\\frac{1}{2}\\) hour. mary wants to know her running speed and biking speed in miles per hour. which fraction represents marys running speed in miles per hour? \\(\\frac{\\frac{1}{2}}{10}\\), \\(\\frac{1}{2}\\), \\(\\frac{10}{2}\\), \\(\\frac{10}{\\frac{1}{2}}\\)

mary ran at a steady speed in a 10-mile race. her finish time was 2 hours. mary can bike the same distance in \\(\\frac{1}{2}\\) hour. mary wants to know her running speed and biking speed in miles per hour. which fraction represents marys running speed in miles per hour? \\(\\frac{\\frac{1}{2}}{10}\\), \\(\\frac{1}{2}\\), \\(\\frac{10}{2}\\), \\(\\frac{10}{\\frac{1}{2}}\\)

Answer

Explanation:

Step1: Recall speed formula

Speed is calculated as ( \text{Speed} = \frac{\text{Distance}}{\text{Time}} ).

Step2: Identify running distance and time

Mary's running distance is 10 miles, and her running time is 2 hours.

Step3: Apply formula to running

Substitute distance = 10 and time = 2 into the speed formula: ( \text{Running Speed} = \frac{10}{2} ).

Answer:

(\boldsymbol{\frac{10}{2}}) (the third option)