There are 3 children in a family named Lisa, Susan, and John. If Lisa is 5 years older than her sister, Susan, and if John is 7 years older than Lisa, and the total of the ages of all 3 children is 50, then how old is Susan

Lisa: 16

Susan: 11

John m: 23

Step-by-step explanation:

Susan: s

Lisa: s+5

John: s+5+7 = s+12

s + s+5 + s+12 = 50

3s + 17 = 50

3s = 33

s = 11

s+5 = 16

s+12 = 23

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

only 10/60 isn't equivalent

hope this : )