Answer:
Equations:
k + m = 48
m = 3k
Answer: Mark is 12; mom is 36
Step-by-step explanation:
Let k = Mark's age
Let m = mom's age
k + m = 48
m = 3k
k + 3k = 48
4k = 48
k = 12
m = 3k = 3(12) = 36
Equations:
k + m = 48
m = 3k
Answer: Mark is 12; mom is 36