Dan is preparing for a 10-mile race. He will run the first 5 miles at an average speed of 6 miles per hour,
the next 3 miles at an average speed of 8 miles per
hour, and the final 2 miles at an average speed of 10
miles per hour. How many hours, rounded to the
nearest hundredth of an hour, will it take Dan to run
the race if he follows his plan?

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

answer:

the answer is b) divide by -4 on each side and flip the sign.

step-by-step explanation:

we first need to start by dividing. this is because it is a multiplication problem to start.

we also need to make sure we flip the sign because any time you multiply or divide by negative numbers, the sign must be flipped.