There are k children in a family, and three fewer adults than kids. how many people are there in this family?

Depending on how many kids or adults there are there is 3 more of the kids.

Step-by-step explanation: let's say you have 2 adults.Since there are 3 more kids than adults there would be 5 children. So all together there is 7 family members

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

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.