Daniel has 20points in his math class, but he has been losing 3points per week. Isekai has 12points in her math class, and she has been gaining 4points per week After how many weeks will David have more points than isela

one?

Step-by-step explanation:

daniel                    iseki    

week 1. 20-3=17    week 1. 12+4=16

week 2. 17-3=14    week 2. 16+4=20

week 3. 14-3=11     week 3. 20+4=24

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