Answer:12.4 inch
Step-by-step explanation:
49.4 is the total length of the rope. And you have to equally divide it into 4 parts.
So 49.4/4
=12.4 inch(rounded off to 3 s.f from 12.35)
p(80+60)=560
p(140)=560
560/140 = 4 hours
Answer:
X= -7/6, 17/8
Foil it, then use quadratic to find zeros/roots.
5 girls : 15 boys
divide each by 5
1 girl: 3 boys
Choice C