To solve the problem shown above, you must apply the proccedure shown below:
1. You must use tthe formula for calculate the volume of a sphere, which is:
V=4πr³/3
V is the volume of the sphere.
r is the radius of the sphere (r=3.5 inches)
2. When you susbstitute these values into the formula shown above, you obtain the volume of the sphere. Therefore, you have:
V=4πr³/3
V=4π(3.5 inches)³/3
3. Therefore, the answer is:
V=179.5 inches³
<em>hey</em><em> </em><em>buddy</em><em>,</em>
<em>●</em><em>15x</em><em> </em><em>+</em><em> </em><em>5y</em><em> </em><em>=</em><em> </em><em>25</em>
<em>5y</em><em> </em><em>=</em><em> </em><em>25-15x</em>
<em>y</em><em> </em><em>=</em><em> </em><em>(</em><em>25</em><em> </em><em>-</em><em> </em><em>15x</em><em>)</em><em> </em><em>/</em><em>5</em>
<em>y</em><em> </em><em>=</em><em> </em><em>5</em><em> </em><em>-</em><em> </em><em>3x</em>
Answer is 90 miles in 2 hours
Step by step
I like the cross multiply method for this. See attached picture with example.
We know she drove 30 miles / 40 minutes
We want to know “x” miles / 120 minutes ( equivalent of 2 hr)
Put into your equation
30/40 = x / 120
40x = 3600
X = 90 miles in 2 hours
The answer is N=84 without me working it out