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OpenStudy (anonymous):
c=650n+600 repair c=450n+1800 replacement find the number of years for which the total cost of repair would equal the total cost of replacement.
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hero (hero):
Set c = c and solve for n
OpenStudy (anonymous):
how? can you show me?
hero (hero):
c = 650 + 600 c = 450n + 1800 c = c 650n + 600 = 450n + 1800 200n = 1200 n = 1200/200 n = 6
hero (hero):
6 years
hero (hero):
This is about the easiest version of a systems of equations there is.
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OpenStudy (anonymous):
okay i got it it's just that i got a lil confused i mean it's a word problem
hero (hero):
This is one of the easiest word problems
hero (hero):
associated with systems of equations
hero (hero):
I'm scared for you
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