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babymother [125]
3 years ago
14

There are currently 487 students enrolled in Webster Elementary School, and the number of students is decreasing at the rate of

16 students per year. Currently the annual expense to educate one student is $1,256, and the expense to educate one student is increasing at the rate of $36 per year. Use the product rule to determine the rate at which the total expense to educate the students at Webster Elementary School is currently changing per year.
Business
1 answer:
elena-s [515]3 years ago
5 0

Answer:

The total expense to educate the students at Webster Elementary School is currently changing per year = $2564

Explanation:

Given - There are currently 487 students enrolled in Webster Elementary School, and the number of students is decreasing at the rate of 16 students per year. Currently the annual expense to educate one student is $1,256, and the expense to educate one student is increasing at the rate of $36 per year.

To find - Use the product rule to determine the rate at which the total expense to educate the students at Webster Elementary School is currently changing per year.

Proof -

Total number of students = 487

Students decreasing rate per year = 16 students

Annual expense to educate 1 student = $ 1256

The increasing rate for 1 student per year = $ 36

Now,

Total increasing cost = 487 × 36 = $ 17532

Now,

Total cost of decreasing students per year = $ 1256 ×16 = $ 20096

Now,

Rate of change = $ 20096 - $ 17532 = $2564

∴ we get

The total expense to educate the students at Webster Elementary School is currently changing per year = $2564

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