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23 September, 19:34

Natalie earns $2.50 for each cd she sells and $3.50 for each dvd she sells. Natalie sold 45 dvds last year. She earned a total of $780 last year selling cds and dvds.

Write an equation that can be used to determine the number of cds [c] Natalie sold last year.

How many cd's did Natalie sell last year?

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  1. 23 September, 22:33
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    45 x 3.50 = 157.50

    780 - 157.50 = 622.50

    622.50 / 2.50 = 249

    Natalie sold 249 cds last year
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