Answer:
5 calories.
Step-by-step explanation:
We begin by calculating the rate at which Raquel burns calories while hiking.
This can be obtained as follow:
Calories burned = 225 calories
Time = 45 mins
Rate =?
In this case, the Rate is simply defined as calories per unit time. Mathematically, it is expressed as:
Rate = Calorie/time
With the above formula, we can obtain the rate at which Raquel burns calories as follow:
Calories burned = 225 calories
Time = 45 mins
Rate =?
Rate = Calorie/time
Rate = 225/45
Rate = 5 cal/min
Therefore, Raquel burns Calories at a rate of 5 cal/min.
Now, we shall determine the calories burned by Raquel in 1 minutes. This is illustrated below:
Rate = 5 cal/min
Time= 1 min
Calorie =.?
Rate = Calorie /time
5 = Calorie /1
Cross multiply
Calorie = 5 x 1
Calorie = 5
Therefore, Raquel burns 5 calories in 1 minute while hiking.
