199k views
4 votes
james has a job with a current salary of $42,000. he wants to earn a collage degree that will take him 2 years to complete and it will cost $28,000 per year. he will go to school full time and will not work. upon graduation, james’ new salary will be $56,000 per year. how many years will it take james to recover his investment

User Cortexlock
by
8.6k points

2 Answers

3 votes
It will take him ten years.
User Dronz
by
8.2k points
4 votes

Answer: 10.6 years

Explanation:

The current salary is $42k per year

the college degree cost $28k per year, and with the degree he can win $56k per year, and here we also can consider that he "loses" the $42k tat he would have earned if he keeped working.

Then, the amount of money per year is:

m1(y) = $42k*y

m2(y) = -2*$42k - 2*$28k + $56k*y

where y is the number of years after he gets his degree,

Now, we must find the value of y where those equations are equal:

$42k*y = -2*$42k - 2*$28k + $56k*y = -2*($28k + $42k) + $56k*y

($42k - $56k)*y = -2*$60k = -$120k

y = 120k/14k = 8.6 years

but remember that we coun y after he gets his degree, which takes 2 years, so the actual number of years that he needs to recover his inversion is (8.6 +2) years = 10.6 years

User Jtsagata
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories