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OpenStudy (anonymous):
A new freezer costs $500 plus $0.20 a day to operate. An old freezer cots $20 plus $0.50 a day to operate. After how many days in the cost of operating each freezer equal? Solve by using row reduction
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OpenStudy (anonymous):
it can be either 500 days 20 days 820 days 1600 days
OpenStudy (rulnick):
500+0.2x=20+0.5x 480 = 0.3x x=1600
OpenStudy (rulnick):
... after 1600 days each would cost $820.
OpenStudy (anonymous):
thx buddy! u rock
OpenStudy (rulnick):
welcome
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