The number of fish in a lake decreased by 25% between last year and this year. last year there were 60 finish in the lake. what is the population this year?

Number of fish remaining this year will be 45.

Step-by-step explanation:

Given information:

The decrement in number of fish = 25%

Number of fish previous year = 60

Then , the remaining number of fish will be 75%

Hence ,

Hence, number of fish remaining this year will be 45.

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This population, the population is 45 fish.

Step-by-step explanation:

This problem can be solved by a rule of three.

Last year there were 60 fish in the lake. That was 100, that is, decimal 1.

This year it decreased 25%. So there 100%-25% = 75%, that is decimal 0.75. So

60 fish - 1

x fish - 0.75

This population, the population is 45 fish.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

- both graphs increase on their domain.

- the graphs of both functions have the same x-intercept.

- neither graph has a y-intercept.