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SIMULTANEOUS LINEAR EQUATIONS

Asked by sanjana241 29th May 2008, 6:21 PM
Answered by Expert
Answer:

let the fixed charge is = x

let the charge per KM is = y

x + 12y = 89

x + 20y = 145

subtract 2nd equation from the first one, we get

-8y = -56

y = 7

x + 12(7) = 89

x + 84 = 89

x = 89-84

x = 5

so for a journey of 30km a person have to pay :

x + 30y = 5 + 30(7)

= 5 + 210 = Rs. 215

Answered by Expert 29th May 2008, 9:10 PM
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