Answer:
x=-12
Step-by-step explanation:
3x+5=2x-7
3x=2x-12
x=-12
11)
3x = 180
x = 60
12)
6x + 18 = 180
6x = 162
x = 27
I think it would be $9.08 per pound
Answer: The proportion of oil tankers that had spills is
or 0.329.
Step-by-step explanation:
Since we have given that
Number of tankers is drawn = 474
Number of tankers did not have spills = 318
Number of tankers have spills = 474 - 318 = 156
Proportion of oil tankers that had spills is given by

Hence, the proportion of oil tankers that had spills is
or 0.329.