Answer:
boys
320/15=21.33 or 21 1/3x4=85 1/3
girls
14.25x3=42.75 or 42 3/4
the total combination of boys and girls
3/4+1/3=9/12 and 4/12=1 1/12+85+42= 128 1/12
124 students
Step-by-step explanation:
Girls participating in the exercise
4/15 x 285 = 76
Boys participating in the exercise
3/20 x 320 = 48
Total students participating
76 + 48 = 124
A)
from 0 to 5, x was moved right 5 units on the first is + 5
then, -1 to -5. it went down 4 units so -4
61 seconds