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Phổ biến Word Problems >

The lion population in a certain reserve drops by 5% every year. Currently, the population's size is 200. Write a function that gives the lion population size, , years from today.

Lời Giải

T h e l i o n p o p u l a t i o n in a cer t ain reser v e d ro p s b y 5% e v ery ye a r . C u rre n tl y, t h e p o p u l a t i o n^{'} s s i ze i s 200. W r i t e a f u n c t i o n t ha t g i v es t h e l i o n p o p u l a t i o n s i ze,, ye a rs f ro m t o d a y .

Lời Giải

Amount after addition : 210

Các bước giải pháp

Translate the problem into an equation:

x = 200 + 0.05 \cdot 200

x = 200 + 0.05 \cdot 200 : x = 210

Amount after addition : 210

Ví dụ phổ biến

Joe buys a shirt on sale for 14.50, The sale is 20% off, What is the original price Darren invests 4, 500 into an account that earns 5% annual interest. How much will be in the account after 10 years if the interest rate is compounded quarterly?After saving money for 3 years at a 5% interest rate compounded monthly, Henry accumulated a total of 2800. How much money did he put into the bank when he started the savings plan?if 7 is added to five times a number the result is equal to three times the number 4 times the sum of a number and-5 equals 24. What is the number?