Question

Ephraim's car is √120 feet long. Hadley's car is 15ft long. Whose car is longer? Explain

Answer 1

Hadley's car.

Explanation:

√120 is less than 15. 11 times 11 is 121 which is already less than 15.

Sorry if it isn't explained that well

Answer 2

Hadley's car is longer.

Explanation:

Ephraim's car is √120 feet long. Hadley's car is 15ft long.

we know
`√(121) \ is \ 11`

`√(100) \ is \ 10`

`√(120) \ lies \ between \ √(100) \ and \ √(121)`

So
`√(120)` is close to 11

Ephraim's car is approximately 11 feet long

Hadley's car is 15ft long.

15 feet is the longer

Hadley's car is longer.