C = 0.38m + 2100 where m represents the number of miles driven per year and C is

Algebra
Tutor: None Selected Time limit: 1 Day

Jane has purchased such a car and decides to budget between $6280 and $8180 for next year's driving costs. What is the corresponding range of miles that she can drive her new car?

    
Mar 25th, 2015

6280 = 0.38m + 2100, so m = (6280-2100)/0.38 = 11000
and 
8180 =0.38m +2100, so m =(8180-2100)/0.38 = 16000

[11000,16000] is the answer....
Please best my answer if helpful. Thanks

Mar 25th, 2015

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Mar 25th, 2015
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Mar 25th, 2015
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