Question

A city has a population of 370,000 people. Suppose that each year the

population grows by 3.75%. What will the population be after 7 years?
Use the calculator provided and round your answer to the nearest whole
number.

Answer 1

463,185

Explanation:

3.75% of 370,000 is 13875

370,000 + 13875 = 383,875

(end of first year)

3.75% of 383,875 is 14395.312, rounding it down to 14395

383,875 + 14,395 = 385,370

(end of second year)

3.75% of 385,370 is 14451.375, rounding it down to 14451

385,370 + 14,451 = 399,821

(end of third year)

3.75% of 399,821 is 14993.287499999999, but I'm rounding it down to 14,933

399,821 + 14,933 = 414,754

(end of fourth year)

3.75% of 414,754 is 15553.275, but I'm rounding it down to 15,553

414,754 + 15,553 = 430,307

(end of fifth year)

3.75% of 430,307 is 16136.512499999999, but I'm rounding it down to 16,136

430,307 + 16,136 = 446,443

(end of sixth year)

3.75% of 446,443 is 16741.6125, but I'm rounding it up to 16,742

446,443 + 16,742 = 463,185

(end of seventh year)

Hopefully, that helped :) I rounded to make the numbers easier to work with, rounding down with numbers below 5, and rounding up with numbers 5 and above.