Question

The age of sara's father is thrice hers the age of sara's brother is 4 years more than her find an expression in terms of y for the sum of their ages whereas y represents sara's age

Answer 1

Answer:

S = 5y + 4

Step-by-step explanation:

f is Sara's father, y is Sara, b is Sara's brother and S is sum

3y = f

b = y + 4

S = f + y + b

  = 3y + y + y + 4

  = 5y + 4

Hope this helps!

Answer 2

Answer:

$5y+4$

Step-by-step explanation:

What we know:

- 3 × $y$ is equal to Sara's father's age

- $y$ + 4 is equal to Sara's brother's age

- $y$ is equal to Sara's age

Sum of their ages = father's age + Sara's age + brother's age

Sum of their ages = $3y+y+(y+4)$

Sum of their ages = $5y+4$

I hope this helps!