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Billy has a $40 gift card. She spends $10 per week. Write a linear equation for this situation. (Hint: Use y = mx + b, where y is money remaining, m is loss per week, and b is the starting money.)
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Billy has a $40 gift card. She spends $10 per week. Write a linear equation for this situation.

(Hint: Use y = mx + b, where y is money remaining, m is loss per week, and b is the starting money.)

User Sigmatics
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1 Answer

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y = -10x + 40
She has $40 to begin with and spends $10 per week.
User Zevi Sternlicht
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