Anonymous
Anonymous asked in Science & MathematicsMathematics · 4 weeks ago

math help?

A container holds 250 mL of a solution that is 20 mL acid. If n mL of a solution that is 60% acid is added, the function 

C(n) = 20 + .6n/250 + n

 gives the concentration, C, as a function of the number of mL added, n. Express n as a function of C.

1 Answer

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  • Bryce
    Lv 7
    4 weeks ago

    Use parentheses to clearly show what goes where.

    C(n) = (20 + 0.6n)/(250 + n)

    250C + Cn= 20 + 0.6n

    n(C - 0.6)= 20 - 250C

    n(C)= (20 - 250C)/(C - 0.6)

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