A lion's heart beats 12 times in 16 seconds. How many heartbeats will it have in 60 seconds?
A) 3.2 heartbeats
B) 36 heartbeats
C) 45 heartbeats
D) 60 heartbeats
60 is 60/16 times as big as 16
so, there will be 60/16 times as many heartbeats, or 60/16 * 12 = 45
or. using a proportion, since the ratio of beats:time is constant,
x/60 = 12/16
To find the number of heartbeats a lion will have in 60 seconds, we can set up a proportion based on the given information. We know that the lion's heart beats 12 times in 16 seconds. We can set up the proportion as follows:
12 heartbeats / 16 seconds = x heartbeats / 60 seconds
To solve for x, the number of heartbeats in 60 seconds, we can cross-multiply and then solve for x:
12 * 60 = 16 * x
720 = 16x
Dividing both sides of the equation by 16, we get:
x = 45
Therefore, the lion will have 45 heartbeats in 60 seconds. So the correct answer is option C) 45 heartbeats.