SOLUTION: Two computer software programs have a combined cost of $390. If one program costs $129 more than the other program, find the cost of each.

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Question 945479: Two computer software programs have a combined cost of $390. If one program costs $129 more than the other program, find the cost of each.


Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
let A= cost of less expensive program, A+$129= cost of other program
A+(A+$129)=$390 Subtract $129 from each side
2A=$261 Divide each side by 2
A=$130.50 ANSWER 1: The less expensive program costs $130.50
A+$129=$130.50+$129=$259.50 ANSWER 2: The more expensive program costs $259.50
CHECK
Total cost=$390
Less expensive+more expensive=total
$130.50+$259.50=$390
$390=$390