SOLUTION: An electric heating system costs $5000 to install, with yearly operating cost of $1100. A gas heating system costs $12000 to install, with yearly operating cost of $700. After a pe

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Question 984873: An electric heating system costs $5000 to install, with yearly operating cost of $1100. A gas heating system costs $12000 to install, with yearly operating cost of $700. After a period of time the total costs for electric heating and gas heating will be the same. What will the total cost be at that time?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
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y=number of years
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$5000+$1100y=$12000+$700y
$400y=$7000
y=17.5
ANSWER 1: The total cost will be the same in 17.5 years.
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CHECK:
$5000+$1100(17.5)=$12000+$700(17.5)
$5000+$19250=$12000+$12250
$24250=$24250
ANSWER 2: The total cost for either after 17.5 years will be $24250.