Help! This Is A Really Hard Problem And Im Very Desperate!!?

A used book store also started selling used CDs and videos. In the first week the store sold 40 used CDs and videos at $4 per CD and $6 per video. The sales for both CDs and videos totaled $180.00. Write a system of equations to represent the many CDs and videos didi the store sell in the first week.

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2 Responses to “Help! This Is A Really Hard Problem And Im Very Desperate!!?”

  1. Alex says:

    now solve for c , v

  2. Its Cocktail Time! says:

    CD=c. Movie=m
    Take c+m=40.
    Subtract c so m=40-c
    Put 40-c in place for m in second equation

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