Keith has 500 in a savings account at the beginning of the summer he wants to have at least 200 at the end of the summer he withdraws 25 per week for food clothing and movietickets how many weeks can keith withdraw money from his account

Let w be the number of weeks. He withdraws $25 per week, so in w weeks, he withdraws 25w. He starts with $500, so after w weeks he has 500 - 25w. He wants this amount to be at least $200. "At least" means "greater than or equal to."

500 - 25w >= 200

-25w >= -300

w <= 12

Keith can withdraw $25 per week for at most 12 weeks.

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