Answer:
4hours
Step-by-step explanation:
1hour =85+85
=170km/h
time= distance÷
speed=170km/h
680÷170=time
=4h
Answer:
yes yes yes 3333333 with another 3
Answer:
The area of A is nine times the area of B.
Step-by-step explanation:
Rational because the number stops
Answer:
r=15
Step-by-step explanation:
You have to get r by itself.
4500pi=4/3*pi*r^3
first divide pi out of the equation.
4500/pi= (4/3*pi*r^3)/(pi)
4500=4/3*r^3
now divide 4/3 out.
4500/(4/3)=(4/3*r^3)/(4/3)
3375=r^3
now you need to find the inverse of r^3
3375^1/3=r^1/3
15=r