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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use this information for items 1-3. Aaron has $65 to rent a bike in the city . It costs $15 per hour to rent a bike. The additio

marissa [1.9K]

Answer:

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

$3+15n\leq 65\\\\$