The answer is (2 1/2) but without the brackets
Answer:
Step-by-step explanation:
Let the time taken by the john to get to his uncle be x.
Let the time taken by the john to get back from his uncle be y.
So,
x+y=12 ------ equation 1
According to the given velocities:
20x=30y
x=3/2y
Put the value x=3/2y in equation 1
3/2y+y =12
3y+2y/2=12
3y+2y=12*2
5y=24
y=24/5
y=4.8h
Now put the value of y in x=3/2y
x=3/2*4.8
x=14.4/2
x=7.2h ....
Hey there!
Here is your answer:
<u><em>The proper answer to this question is "44 times".</em></u>
Reason:
You have to solve it this way:
<u><em>12 heartbeats=16 seconds</em></u>
<u><em>16+16=32</em></u>
<u><em>36+16=48</em></u>
<u><em>48+16=64</em></u>
<u><em>16-12=4</em></u>
<u><em>12+12=36+8=44</em></u>
<em>Therefore lions heart beats 44 times every 60 seconds.</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
Answer:
D
Step-by-step explanation:
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