Explain what it means to divide 5 by 1/4

1/20

Step-by-step explanation:

To divide a whole number by a fraction  you have to first change the whole number into a fraction. so you get 5/1 divided by 1/4.

The first step is to flip 5/1 around to 1/5 so you get 1/5 divided by 1/4

Next you multiply them because the first fraction was flipped around. so 1/5 multiplied by 1/4 equals 1/20 and that can not be simplified.

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

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