The answer for this is (2,3)
Conversational speech is 65 dB as a known fact.
Using math, dB = 10 log[10] ratio
10x => 10(1) = +10 dB
100x => 10(2) = +20 dB
base is 45 dB
I agree the answer is 225 and you can also use the calculator too.
Answer:
40
Step-by-step explanation:
5 people in the room have 5*40 = 200 years altogether
a new person is X years old.
Now 6 people have (200 + x) years altogether.
Mean age of 6 people is (200+x)/6. and it is also = 40.
So,
(200+x)/6 = 40
200 + x = 240
x = 40
Answer:
46 times 24
Step-by-step explanation:
