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grandymaker [24]
3 years ago
5

Please help me please help me the problems are up above

Mathematics
1 answer:
fomenos3 years ago
5 0

The volume of a sphere with radius r is \frac{4}{3}\pi r^3. If the radius is multiplied by a constant k, then the new volume is \frac{4}{3} \pi (kr)^3, which is equal to k^3 \cdot \frac{4}{3} \pi r^3. This means that the volume of the sphere is multiplied by k^3.

a. If the radius is doubled, the volume is multiplied by 8

b. If the radius is tripled, the volume is multiplied by 27

c. if the radius is quadrupled, the volume is multiplied by 64

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Answer:

<h2>You will ride for 4 hrs 8min</h2>

Step-by-step explanation:

What we are expected to solve for that the problem did not expressly state is most likely the number of hours that you could ride for an amount of $65.

firstly we need to model the inequality (equation) for this scenario.

the constant fee= $3 additional fee for helmet

3+15n\leq 65\\\\

We can now solve for n since the above inequality satisfies the condition presented in the problem statement.

 3+15n\leq 65\\\\15n\leq65-3\\\\ 15n\leq 62

Divide both sides by 15 to find n

n\leq 62/15\\\\n\leq 4hrs -8min

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Step-by-step explanation:

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