There were 80 boys and 95 girls on the middle school track team last year this year the number of boys increased by 15% well the number of girls decreased by 20% was there an overall increase or decrease in the number of students on the track team calculate the overall percent of change in the number of students on the track team
A. 1% increase
B.4% increase
C.17.7% increase
D.1% decrease
E.4% decrease
F.17.7% decrease
soooo whats the answer
To answer this question, we need to calculate the number of students in the track team last year and this year, and then determine the overall percent of change.
Last year, there were 80 boys and 95 girls on the track team, meaning there were a total of 80 + 95 = 175 students.
This year, the number of boys increased by 15%, which means there are 80 + (0.15 * 80) = 80 + 12 = 92 boys.
The number of girls decreased by 20%, which means there are 95 - (0.20 * 95) = 95 - 19 = 76 girls.
Therefore, this year there are a total of 92 boys + 76 girls = 168 students on the track team.
To find the overall percent of change, we can calculate the difference between the number of students this year and last year, and then divide that by the original number of students:
Change in number of students = (168 - 175) / 175 = -7 / 175 = -0.04
The overall percent of change is then -0.04 * 100 = -4%.
So the correct answer is:
E. 4% decrease
original:
boys: 80
girls : 95
now:
boys = 1.15(80) = ...
girls = .8(95) = ...
add them up to get the new total.
take the difference,
percent change = difference/175 ,
interpret the positive vs negative answer.