starbutterfly1550 starbutterfly1550

04-01-2019
Mathematics

contestada

The number of fish in a lake deceased by 25% between last year and this year.Last year there were 60 fish in the lake. What is the population this year?

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richjessica2002 richjessica2002

04-01-2019

45 fish

explination. 25% of 60= 15
60-15=45

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musiclover10045 musiclover10045

04-01-2019

The population decreased by 25% which means there is 75% of the population left ( 100% - 25% = 75%)

Multiply last years population by 75%:

60 x 0.75 = 45 fish this year.

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