Annette has finished 20 of her homework problems. That is 80% of the total assinged by her math teacher. How many pronlems were
1 answer:
You might be interested in
Answer:
Solving the given linear system, we get x = 1 and y = -3.
The solution set is: (1,-3)
Step-by-step explanation:
We need to solve the linear system of equations.
We can write second equation y=x-4 as:
Let:
Now, Adding equation 1 and 2
So, we get x = 1
Now, put value of x in second equation to find value of y:
So, we get y = -3
Solving the given linear system, we get x = 1 and y = -3.
The solution set is: (1,-3)
Answer:
Explanation:
given that y = 2
using quadratic formula:
in decimals: