Mr. Salas receives a 10% raise every year. His salary after four such raises has gone up by what percent?

1 Answer
Daniel Boyd
Jun 24, 2016

#10%xx4=40%#

Explanation:

Mr. Salas receives a yearly raise of 10%

#r# = 10% = the rate of his yearly raise

#t# = 1 = the number of times he receives the 10% raise in one year

#x# = 4 = the number of raises Mr. Salas received

#y# = 40% = the amount his raise has gone up since year 1

#rxxtxxx=y=10%xx1xx4=40%#

After four 10% raises, Mr. Salas has earned 40% of his original salary which was 40% less than what he earns now.

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