A snail crawls 2 3/4 inches in one minute . How far can it travel in 3 1/2 minutes?

5/6 inch/minute

Whenever you are working with a question of rate where two different quantities are being compared, the required units will indicate which quantity is to be divided by which.

In this case you want to know inches per minute.Therefore:

5

8

inches

÷

3

4

minute

5

8

÷

3

4

=

5

8

×

4

3

←

multiply by the reciprocal

=

5

8

2

×

4

3

=

5

6

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

28

step-by-step explanation:

because that's the answer