Alina is able to swim at a rate of about 2.5 miles per hour. Talia is able to swim at a rate of 1.8 meters per second. Which statement comparing the two swimmers is accurate?

1 mile 1,609 meters

Alina swims about 0.7 miles per hour faster than Talia.
Talia swims about 0.7 miles per hour faster than Alina.
Alina swims about 1.5 miles per hour faster than Talia.
Talia swims about 1.5 miles per hour faster than Alina.

Talia swims about 1.5 miles per hour faster than Alina.

Step-by-step explanation: There are 3600 seconds in an hour so

1.8 x 3600 =6480

6480 divide by 1609 = 4.02 miles / hr

4.02 - 2.5 = 1.5 (by substracting the speed). This arrives at the answer that Talia swims 1.5 miles faster.

associative property of multiplication

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6