Answer:
The ratio of Jay's age to Kiaria's age to Martha's age.
Jay : Kiaria : Martha
14 : 21 :42
Step-by-step explanation:
Let the ages be represented as:
Kiaria = x
Jay = y
Martha = z
Kiaria is 7 years older than Jay.
x = 7 + y
Making y the subject of the formula
y = x - 7
Martha is twice as old as Kiaria.
z =2x
The sum of their three ages is 77.
x + y + z = 77..... Equation 1
Hence, we substitute in Equation 1
z = 2x
y = x - 7
x + x - 7 + 2x = 77
4x - 7 = 77
4x = 77 + 7
4x = 84
x = 84/4
x = 21
Solving for y
y = x - 7
y = 21 - 7
y = 14
z =2x
z = 2 × 21
z = 42
Hence:
Kiaria = x = 21
Jay = y = 14
Martha = z = 42
The ratio of Jay's age to Kiaria's age to Martha's age.
Jay : Kiaria : Martha
14 : 21 :42
