3. Which expression is equivalent to 0? A. O a+(-a) B.O a-(-a) C. (a)(-a) D.
1 answer:
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Answer:
(x-2)(x+5)
Step-by-step explanation:
I have answered ur question
Answer:
5280people
Step-by-step explanation:
Given parameters:
Percentage increase of population = 25%
Population now = 6600
Unknown:
Population last year = ?
Solution:
Let the population last year = y;
Then;
Percentage of last years population plus the population of last year should give us this year's population;
( of y) + y = 6600
0.25y + y = 6600
1.25y = 6600
y = = 5280people
Last year, there was 5280people in the locality.