Question

The following table shows the number of heart beats for 4 animals. For example, the pig's heart beats 225

times in 3 minutes.
Animal
Heartbeats
Minutes
Pig
225
Horse
180
Cow
520
Dog
540
Which animal's heart beats at a rate of 65 beats per minute?

Answer 1

Answer:

none of the above
unless you typed one of them wrong all you have to do is divide each one by 3 and see which one gives you 65

Answer 2

The cow's heart beats at 65 beats per minute

Explanation:

To solve the per minute, take the total heartbeat number and divide it by the amount of minutes like so:

Pig:
`(225)/(3)`

Horse:
`(180)/(4)`

Cow:
`(520)/(8)`

Dog:
`(540)/(6)`

Now all that you have to do is simplify them to get the following values:

Pig: 75 beats per minute

Horse: 45 beats per minute

Cow: 65 beats per minute

Dog: 90 beats per minute