Answered

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1. Gina has $90 in her account and takes out $2 each day. Using aas the amount left in the account and d as the number of dayspassed, write an equation for Gina's bank account.

Sagot :

SOLUTION

Now Gina originally has $90 in her account. She takes $2 everyday

So since we are told to take d as the number of days, this means in any number of days, the amount she takes becomes

[tex]\begin{gathered} 2dollars\times d \\ =2\times d \\ =2d \end{gathered}[/tex]

The amount left in her account should be gotten by subtracting 2d from the original amount of $90, so that becomes

[tex]90-2d[/tex]

Since we were told that a should represent the amount left, it implies that

[tex]a=90-2d[/tex]

Hence the equation for Gina's bank account is

[tex]a=90-2d[/tex]
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