A lion's heart beats 6 times in 8 seconds. How many heartbeats will it have in 40 seconds?
2 answers:
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Given:
m is directly proportional to the cube of h.
m = 525 when h= 5.
To find:
The equation connecting m and h.
Solution:
m is directly proportional to the cube of h.
...(i)
Where, k is the constant of proportionality.
Putting m = 525 and h= 5, we get
Putting k=105 in (i), we get
Therefore, the required equation is .
To solve this problem you must apply the proccedure shown below:
If , you have that:
Because and
Therefore, as you can see, the answer is: