Lin and her brother were born on the same date in different years. lin was 5 years old when her brother was 3. how old was her brothers age when lin was 15? how old is lin when her brother was 25?

if Lin was 5 when her brother was 3 then we know that her brother is 2 years younger than her so when she was 15 her brother was 13 and when Lin was 25 her brother was 23.

ANSWERS:

When Lin 15 brother 13

When Lin 25 brother 23

77

step-by-step explanation:

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