The answer is 15.
17^2-8^2=225
sr of 225= 15
:))
<span>A has earned twice as much as B so: A=2B
B has averaged 50% more than C so: B=C+0.5C
Combined is 220K, So A+B+C=220,000
The last equation can be re-written as:
2B+1.5C+C=220K
AND since A=2B, it can be rewritten again as:
3C+1.5C+C=220K
Now you can get C
finally, since B=1.5C you can get B, then to get the average, just divide that by 3 (years) and you should be done.
So B = 60000 for 3 years</span>
C. 2+3 = 5
1/12+1/12=2/12
So C would make sense because those all add up to the answer :-)
1/2 as a decimal is 0.5 or .5
