Hi guys, Can some one explain step by step this problem, because i didn't understand the book explanation.
On a scale that measures the intensity of a certain phenomenon, a reading of n+1 corresponds to an intensity that is 10 times the intensity corresponding to a reading of n. On that scale, the intensity corresponding to a reading of 8 is how many times as great as the intensity corresponding to a reading of 3?
C) 10 with exponent 5
D) 5 with exponent 10
E) 8 with exponent 10 - 3 exponent 10
I hardly understand what they are asking for.
Scale - Corresponding intensity
intensity of (n +1) - 10(intensity of n)
intensity of 8 - x(intensity of 3)
We need to find out x ?
8 - 10(intensity of 7)
so we go down to 3 we are just multiplying each time by 10. So in this case the power of 10 will be 8-3 = 5
x = 10^5 <--- C