Question

kelly is 9 years younger than her sister. if both of their ages sum up to 44, how old is kelly and how old is her sister

Answer 1

Answer: Kelly = 17.5, sister = 26.5

Work Shown

k = Kelly's age

k+9 = age of Kelly's sister

kellysAge + sistersAge = 44 years total

k + (k+9) = 44

2k+9 = 44

2k = 44-9

2k = 35

k = 35/2

k = 17.5 = Kelly's age

k+9 = 17.5+9 = 26.5 = sister's age