Number 9 need help mathhh
1 answer:
Using the volume formula, we will see that the volume of the sphere is V = 381.51 cm^3
<h3>How to get the volume of the sphere?</h3>
For a sphere of radius R, the volume is given by the formula:
In this case, we can see that the diameter is 9 cm, then the radius is half of that:
R = 9cm/2 = 4.5cm
Now that we know the radius, we can replace it on the volume formula to get:
If you want to learn more about spheres, you can read:
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Answer:
So this means the bus B covered 390-120=270 miles when bus A has already reached 390 miles.
270 miles
Step-by-step explanation:
So is A is going faster than B so A will reach the destination first.
When will A reach it's destination?
Let's find out.
To solve this problem, the following will come in handy:
Speed=distance/time or time*Speed=distance or time=distance/speed .
time=distance/speed
So it will take bus A 6 hours to cover the distance of 390 miles.
How much time would have it taken bus B to reach that same distance?
So it would have taken bus B hours to cover a distance of 390 miles.
So the time difference is hours.
It will take more hours than bus A for bus B to complete a distance of 390 miles.
So bus B traveled miles (used the time*speed=distance) after bus A got to it's destination.
So this means the bus B covered 390-120=270 miles when bus A has already reached 390 miles.