contestada

Jenny has $55 in her checking account. She bought 7 equally priced DVDs and paid
with a check. Her new account balance is –$22. How much was each DVD?

Respuesta :

Answer:

Each DVD was 11 dollars

Step-by-step explanation:

First let's make our equation

Lets read our equation and take the most important parts of it

                             Most important parts put into a equation

Let d represent DVD's

                                                [tex]55-7d=-22[/tex]

Subtract both sides by [tex]55[/tex]

                                                [tex]-7d=-77[/tex]

Divide both sides by [tex]-7[/tex]

                                                  [tex]d=11[/tex]

Each DVD was 11 dollars

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