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Jacob has $1,000 in a checking account and withdraws $40 each week. His account requires a minimum balance of more than $400. which inequality models the number of weeks, x, Jacob can withdraw for $40 to maintain the minimum balance required?

Jacob has 1000 in a checking account and withdraws 40 each week His account requires a minimum balance of more than 400 which inequality models the number of we class=

Respuesta :

Start writing an expression that represents the balance of the account after the withdrawal each week

[tex]1000-40x[/tex]

then, complete the inequality taking into account the conditions of leaving a minimum of $400

[tex]1000-40x\ge400[/tex]

solve the inequality

[tex]\begin{gathered} -40x\ge400-1000 \\ -40x\ge-600 \\ 600\ge40x \\ \frac{600}{40}\ge x \\ 15\ge x \\ x\leq15 \end{gathered}[/tex]