Answer:
Amy is 20
Explanation:
Let Amy's age be A and Mike's age M
Five years ago, A - 5 = 3(M - 5)
A - 5 = 3M - 15
A = 3M -15 + 5
A = 3M - 10 ( M = 10)
A = 3(10) - 10 = 30 - 10 = 20
Linear equations are defined as the equation written in the format of ax + by + c = 0.
In the given example, the age of Amy will be 20 years.
The correct answer is 20 years.
Given:
Age of Mike = 10 years (now)
Age of Amy = A
Let the age of Mike be X and Amy be Y.
Now,
Five years ago, age of Amy is:
Y - 5 = 3 (X - 5)
Solving the equation, we get:
Y - 5 = 3X - 15
Y = 3X -15 + 5
Y = 3X - 10
Now, the value of X given as = 10, such that:
Y = 3(10) - 10
30 - 10 = 20
Thus, the age of Amy is 20 years.
To know more about linear equations, refer to the following link:
https://brainly.com/question/11897796
