Question

Evelyn, Neil, and Leilani swim laps at constant rates. Select the swimmer who swims the fastest. Remember, the fastest swimmer swims laps in the shortest amount of time. Choose 1 answer: Choose 1 answer: (Choice A) A Evelyn swims 444 laps in 216216216 seconds. (Choice B) B Neil calculates the number LLL of laps he swims in SSS seconds using the equation 126L=3S126L=3S126, L, equals, 3, S. (Choice C) C

Answer 1

Evelyn, Neil, and Leilani swim laps at constant rates.

Select the swimmer who swims the fastest.

Remember, the fastest swimmer swims laps in the shortest amount of time.

Choose 1 answer:

Choose 1 answer:

(Choice A, Incorrect)

INCORRECT

Evelyn swims 444 laps in 216216216 seconds.

Evelyn takes 545454 seconds per lap. Which swimmer takes the least amount of time per lap?

(Choice B, Incorrect)

INCORRECT

Neil calculates the number LLL of laps he swims in SSS seconds using the equation 126L=3S126L=3S126, L, equals, 3, S.

Neil takes 424242 seconds per lap. Which swimmer takes the least amount of time per lap?

(Choice C, Checked, Correct)

CORRECT (SELECTED)

Explanation:

Answer 2

The fastest swimmer is Leilani

Explanation:

The complete question in the attached figure

step 1

we know that

Evelyn swims 4 laps in 216 seconds

Divide the total time by the number of laps

so

`(216)/(4)= 54\ seconds\ per\ lap`

step 2

Neil

we know that

`126L=3S`

Solve for S

Divide by 3 both sides

`S=(126)/(3)L`

so

`S=42L`

That means ----> Neil swim
`42\ seconds\ per\ lap`

step 3

we know that

Leilani swim
`32\ seconds\ per\ lap`

step 4

Compare the values

`32\ sec < 42\ sec < 54\ sec`

therefore

The fastest swimmer is Leilani