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28-11-2020
Mathematics

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Cardinals jerseys come in three different sizes, medium, large and extra large. A medium is x dollars, a large is $9 more than the medium and the extra large is $15 more than the medium. On gameday, a store sold 9 large jerseys and 4 extra large jerseys for a total of $414 in sales, what is the cost of a medium jersey?

Respuesta :

28-11-2020

Answer:

MEDIUM JERSEY =$21

Step-by-step explanation:

MEDIUM=$X ,LARGE =$X+9, EX LARGE=$X+15

9(X+9)+4(X+15)=414

9X+81+4X+60=414

13X=414-141

13X=273

X=21

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