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Mathematics 20 Online
OpenStudy (anonymous):

Word problem question.

OpenStudy (anonymous):

OpenStudy (anonymous):

.14x+27=.18 +20

OpenStudy (anonymous):

how do i start to do that??

OpenStudy (anonymous):

.14x+ 27 = .18x +20 the flat rates of 27 and 20 are your constant (y-intercepts in y=mx+b) where the extra cost is the slope

OpenStudy (anonymous):

wait..im confused.

OpenStudy (anonymous):

rates are peer minute which is an additional charge on top of the base amounts of 27 and 20 for the plan

OpenStudy (anonymous):

solve the equation by putting x's on one side and constants on the other .04x=7 then divide both sides by .04 so x = 175

OpenStudy (anonymous):

so its 175 minutes.?

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

if you plug in 175 then both sides will equal each other

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