The following table shows the number of heart beats for 4 animals. For example, the pig's heart beats 225 times in 3 minutes Which animal's heart beats at a rate of 65 beats per minute?
Animal
Pig
Horse
Cow
Dog
Heartbeats
225
180
520
540
Minutes
3
4
8
6
To find the animal whose heart beats at a rate of 65 beats per minute, we can calculate the number of heartbeats for each animal and check which one matches the desired rate.
For the pig:
Heartbeats per minute = 225 beats / 3 minutes = 75 beats per minute
For the horse:
Heartbeats per minute = 180 beats / 4 minutes = 45 beats per minute
For the cow:
Heartbeats per minute = 520 beats / 8 minutes = 65 beats per minute
For the dog:
Heartbeats per minute = 540 beats / 6 minutes = 90 beats per minute
From the calculations, we can see that the cow's heart beats at a rate of 65 beats per minute.
To determine which animal's heart beats at a rate of 65 beats per minute, we can divide the number of heartbeats by the number of minutes for each animal.
For the pig: 225 heartbeats / 3 minutes = 75 beats per minute
For the horse: 180 heartbeats / 4 minutes = 45 beats per minute
For the cow: 520 heartbeats / 8 minutes = 65 beats per minute
For the dog: 540 heartbeats / 6 minutes = 90 beats per minute
Based on the calculations, the animal that has a heart rate of 65 beats per minute is the cow.
To determine which animal's heart beats at a rate of 65 beats per minute, we can look at the given table and compare the heartbeats per minute for each animal.
First, let's calculate the heart beats per minute for each animal using the given information. We divide the number of heartbeats by the number of minutes for each animal:
- Pig: 225 heartbeats / 3 minutes = 75 beats per minute
- Horse: 180 heartbeats / 4 minutes = 45 beats per minute
- Cow: 520 heartbeats / 8 minutes = 65 beats per minute
- Dog: 540 heartbeats / 6 minutes = 90 beats per minute
As calculated, the cow's heart beats at a rate of 65 beats per minute. Therefore, the correct answer is the cow.