A gym membership starts with 120 members and grows by 5% each month. Which formula models the membership after t months?, y=120(1.05)^t, y=125(1.05)^t, y=120+5t, y=120(0.95)^t, A car is worth $24,000 and loses 18% of its value each year. Which formula models its value after t years?, y=24000(0.18)^t, y=24000-18t, y=24000(1.18)^t, y=24000(0.82)^t, A bacteria culture begins with 80 cells and triples every hour. Which formula models the number of cells after t hours?, y=240(3)^t, y=80(2)^t, y=80(3)^t, y=80+3t, A lake has 600 fish and the population decreases by 12% each year. Which is the decay formula?, y=600-12t, y=600(0.88)^t, y=600(0.12)^t, y=600(1.12)^t, A social media account starts with 250 followers and gains 40% each week. Which formula models the followers after t weeks?, y=250(0.6)^t, y=250(1.4)^t, y=250(0.4)^t, y=250+40t, A medicine dose starts at 500 mg and halves every 8 hours. Which formula models the amount after t time periods?, y=500(0.5)^t, y=250(0.5)^t, y=500-0.5t, y=500(2)^t, An investment starts at $900 and grows by 7% each year. Which formula models its value after t years?, y=900+7t, y=907(1.07)^t, y=900(1.07)^t, y=900(0.93)^t, A town has 15,000 people and shrinks by 3% each year. Which formula models the population after t years?, y=15000(0.03)^t, y=15000(1.03)^t, y=15000-3t, y=15000(0.97)^t, A puppy weighs 12 pounds and gains 25% each month. Which formula models its weight after t months?, y=12(1.25)^t, y=12(2.5)^t, y=12+25t, y=12(0.75)^t, A machine is purchased for $8,000 and depreciates by 10% each year. Which formula models its value after t years?, y=8000(1.1)^t, y=8000(0.1)^t, y=8000(0.9)^t, y=8000-10t

Exponential Word Problems

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