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damaskus [11]
3 years ago
5

James has 3 pairs of running shoes for every 4 pairs of basketball shoes. If he has 12 pairs of basketball shoes, how many pairs

of running shoes does he have?
Mathematics
1 answer:
GaryK [48]3 years ago
7 0
If James has 12 pairs of basketball shoes, then the ratio would be 3:4 which would stop at 3:12. Then the individual ratios would be 3:4, 6:8, and 9:12

So James has 9 pairs of running shoes
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Which of the following situations could be modeled by an exponential function?
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Answer: Option D.

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An exponential function is something like:

f(x) = A*(r)^x

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r = rate of growth

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"There is a population of A animals, and it doubles each year"

Let's analyze briefly all the given options and see which one is an exponential function.

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This is a linear relation, if W is the initial amount of water, and x is the number of days, then the water level of the tank after x days is:

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The amount collected increases $5000 each year.

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D) The number of people in a stadium is decreasing at a rate of 45% every 10 minutes.

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After another 10 minutes, the population decreases again.

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We can see the pattern here, this can be written as

People(x) = N*(0.55)^x

This is an exponential function.

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