Serena earns $21 per hour.
She earns 21 - 13.50 = $7.50 more than Gabe.
Answer:
Diameter = 12.00 in
Step-by-step explanation:
Given:
Capacity of water balloon (V) = 904.78 in³
Let the diameter of the water balloon be 'd' inches.
Assuming the water balloon is spherical in shape.
We know that, volume of a sphere is given as:

Where 'r' is the radius of the sphere.
Use π = 22/7
Now, plug in the given values and solve for radius 'r'. This gives,
![904.78=\frac{4}{3}\times \frac{22}{7}\times r^3\\\\904.78=\frac{88r^3}{21}\\\\88r^3=904.78\times 21\\\\r^3=\frac{19000.38}{88}\\\\r^3=215.9134\\\\r=\sqrt[3]{215.9134}=5.9992\ in](https://tex.z-dn.net/?f=904.78%3D%5Cfrac%7B4%7D%7B3%7D%5Ctimes%20%5Cfrac%7B22%7D%7B7%7D%5Ctimes%20r%5E3%5C%5C%5C%5C904.78%3D%5Cfrac%7B88r%5E3%7D%7B21%7D%5C%5C%5C%5C88r%5E3%3D904.78%5Ctimes%2021%5C%5C%5C%5Cr%5E3%3D%5Cfrac%7B19000.38%7D%7B88%7D%5C%5C%5C%5Cr%5E3%3D215.9134%5C%5C%5C%5Cr%3D%5Csqrt%5B3%5D%7B215.9134%7D%3D5.9992%5C%20in)
Now, diameter is equal to twice of radius. Therefore,

Therefore, the diameter of the balloon is 12.00 inches.
Answer:
They will be at the same position after 2 hours.
Step-by-step explanation:
Here, it should be asked the time it will take for Anita to catch Brad.
Anita began riding at start of the path and is riding at rate of 18 mile per hour.
This means that, after t hours, her position will be given by:

Brad begin from a sport 10 mile ahead of her and I riding at rate of 13 mile per hour
This means that, after t hours, his position will be given by:

After how much time will they be at the same position?
This is t for which:

So




They will be at the same position after 2 hours.
Answer:
H = 2 S = 50 A = 50.2
Step-by-step explanation:
A=2πrh+2πr2
S = 2tr2 + 2trh
S = 2 (t x r) + (h x 2t) x r Try out ^2 for Radius
S = 2t x r^2 + r x h x 2t Rearrange back and cross out for square^2
S = 6t x 4 + 6t x r x h Cross out for t
S = 6 x 4 + 6 x 2 x h Balance out...
S= 24 + 12 x 2 Find h = 2
S = 36 + 24
S= 50 sq2
A = 50. 2
R = 2
H = 2
Checker
Area = 6.28318530718 x 4 + 6.28318530718 x 2 x 2 = 50.27sq2