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A balloon takes 1 minute to rise 60 feet in the air. Each minute after that, the balloon rises 40% as far as it did the previous minute. Which equation finds the distance, d, the balloon rises in 6 minutes?

A balloon takes 1 minute to rise 60 feet in the air. Each minute after that, the balloon-example-1
User Samrat Das
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2 Answers

3 votes

Answer:

B

Explanation:

User Abdus Salam Azad
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1 vote
The answer to the given question is letter "B".

We will compute first individually
The distance at 1 min. =60
At 2 minutes= 60 +0.4*60 = 84
At 3 minutes = 84 +0.4*84 = 117.6
At 4 minutes = 117.6 + 0.4*117.6 = 164.64
At 5 minutes = 164.64 + 164.64*0.4 = 230.5
At 6 minutes = 230.5 + 230.5*0.4 = 323

Since the answer is letter "B" when we calculate using this equation in B, we will arrive at the same answer at 6 minutes:

D = 323
User AnthonyJClink
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