An earthquake with a rating of 3.4 can cause destruction in areas of up to 100
kilometers that are populated.
R = log x
=
=
R = rating of the earthquake's size on the
Richter scale
x = ratio of earthquake intensity to a
minimum level of intensity

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!