Answer 15 pts

there are 89 boys and 95 girls on the middle school track team last year. this year the number of boys increased by 15%, while 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

E

Step-by-step explanation:

89 + 95 = 184

89 x 15% increases the number of boys by 13             89 + 13 = 102

95 x 20% decreases the girls by 19                              95 -  19 =  76

                                                                               102 + 76 + 178

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.