contestada

You have $121 in a savings account and save $1 2
per week. Your friend has S9 I in a savings
account and saves SI 7 per week. How many
weeks will it take for you and your friend to have
the same balance?

Respuesta :

PickleBomb

It will take 6 weeks for you and your friend to have the same balance.

First, you must set up your equation, with [tex]x[/tex] representing the amount of weeks

until you and your friend have the same balance.

[tex]121+12x=91+17x[/tex]

Then, you must subtract 91 on both sides.

[tex]30+12x=17x[/tex]

Next, subtract 12x on both sides.

[tex]30=5x[/tex]

Finally, divide 5 on each side

[tex]x=6[/tex]

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