Linear equations

Asked by  | 7th Sep, 2008, 11:34: AM

Expert Answer:

let mess charge of one day be = x

and fixed charge is =y

so y+20x=1000

and y+26x=1180

subtract both the equations we get 6x=180 or x=30

substutinfg x in equation we get y=400

so charges whwn food is taken for 17 days wii be= 400+30*17=910

Answered by  | 8th Sep, 2008, 05:14: PM

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