3 equivalent ratios for 18/6 are 39/12, 9/3, and 54/18.
38 samples per hour is your answer
To solve this problem, you set up the equation 45+(2x-5)=180
Next, subtract 45 from 180 to get the equation 2x-5=135
After that, add 5 to 135 to get 2x=140
Diviode 140 by 2 to get X=70
Answer B
One thing that gave it away was that we are dealing with a 30-60-90 triangle so in the final equation we should have (x=Any number)
not square root two