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calculus

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A military jet flies directly over and at a right angles to the straight line course of a commercial jet. The military jet is flying 200 mph faster than four times the commercial jet. How fast is each going if they are 2050 miles apart (on a straight line) after one hour?

  • calculus - ,

    C=speed of commercial jet in mph
    M=speed of military jet
    =4C+200 mph
    Distance after one hour, using Pythagoras theorem
    =√(C²+M²)=2050
    Solve for C and M

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