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The World Future Society predicts that by the year 2020, airplanes will be able to carry 1400 passengers. Today’s biggest jets can carry 600 passengers. What will be the percent of increase of airplane passengers?

Answer 1

Ethan Adkins

The will be a 133.3% increase rounded to the nearest tenth.

The following formula can be used to determine the rate or percentage of change over time:

#p = (N - O)/O * 100#

Where:

#p# is the percent change #N# is the New Value, 1400 for this problem #O# is the Old Value, 600 for this problem

Substituting and calculating for #p# gives:

#p = (1400 - 600)/600 * 100#

#p = 800/600 * 100#

#p = 80000/600#

#p = 133.3#

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Answer 2

Eli Assouline

The percent increase of airplane passengers from 600 to 1400 is 133.33%.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.