Question 1156316: Adam got $600 for his birthday and deposited it into his bank account. Each week he withdrawals $30 to go to the movies. After one week he has $570, two weeks $540, three weeks $510, and four weeks $480.
• 𝑓(w) = amount in his bank account after w weeks
• 𝑓(0) = 600
Enter an equation, for w ≥ 1, which describes the amount in Adam’s account, 𝑓(w), after w, weeks in terms of the amount in his account the previous week, 𝑓(w − 1).
Enter the amount Adam will have in his account after 10 weeks f(10).
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Adam got $600 for his birthday and deposited it into his bank account. Each week he withdrawals $30 to go to the movies. After one week he has $570, two weeks $540, three weeks $510, and four weeks $480.
• 𝑓(w) = amount in his bank account after w weeks
• 𝑓(0) = 600
Enter an equation, for w ≥ 1, which describes the amount in Adam’s account, 𝑓(w), after w weeks in terms of the amount in his account the previous week, 𝑓(w − 1).
Enter the amount Adam will have in his account after 10 weeks f(10).
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f(w) = f(w-1)-30
f(w) = 600-30w
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f(10) = 600-30*10 = 300
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Cheers,
Stan H.
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