Respuesta :

alayna1acosta

Answer:

31.5

Step-by-step explanation:

Answer:

let their age be x and y

x=y.......1st equation

2

now,

product of their age

x+y=63

y +y=63 (putting the value of x=y/2)

2

3y =126

y=126

3

y=42

hence,

age of jessica is y =42.