Robert climbed
\[775\] steps in
\[12\dfrac{1}2\] minutes.
How many steps did he average per minute?
The average number of steps that Robert climbed per minute is 62 steps.
To find the average number of steps Robert climbed per minute, divide the total number of steps by the total number of minutes: \[775 \text{ steps} \div 12\dfrac{1}2 \text{ minutes}\] Let's first convert the mixed number into an improper fraction: \[12\dfrac{1}2 = \dfrac{25}{2}\] Hence, dividing the two numbers
\[\begin{aligned} 775 \text{ steps} &\div \dfrac{25}{2} \text{ minutes} \\ &= 775 \text{ steps} \times \dfrac{2}{25} \text{ steps per minute} \\ &= \dfrac{1550}{25} \text{ steps per minute} \\ &= \boxed{62}\text{ steps per minute} \end{aligned}\]
so what is it
To find the average steps per minute, you need to divide the total number of steps climbed by the total number of minutes taken.
In this case, Robert climbed 775 steps in 12 1/2 minutes. However, it would be easier to work with decimal numbers, so let's convert the mixed number to a decimal.
12 1/2 can be written as 12.5.
Now, divide the total number of steps climbed (775) by the total number of minutes taken (12.5):
\[ \text{Average Steps per Minute} = \frac{\text{Total number of Steps climbed}}{\text{Total number of Minutes taken}} \]
\[ \text{Average Steps per Minute} = \frac{775}{12.5} \]
Calculating this expression, we find:
\[ \text{Average Steps per Minute} = 62 \]
Therefore, Robert averaged 62 steps per minute.