2,500 subtracted by 372 equals 2148. 2148 dollars is how much savings he has left.
Let m = number of multiple choice questions
Let s = the number of short response questions
The system of linear equations for this situation is:
m + s = 20
3m + 8s = 100
Answer: 15
Step-by-step explanation: 5+9+11+12+13+14+17=81
Make an equation based on this and solve for the variable (x)
81+x/8=12
12*8=96
81+x=96
96-81=15
x=15
Answer:
3.88
Step-by-step explanation:
i hope this this help
We have been given a system of equations and we are asked to write correct coefficient matrix for this system.
Since we know that a matrix for a system of equations is in the form: , where A represents the coefficient matrix, X is variables''s matrix and B is the constant matrix.
We are given two equation and two unknown variables, so our coefficient matrix will be a matrix. Our matrices for variable and constant will be of dimensions (column matrix).
We can represent our given system of equations in matrix form as:
Now let us find our A, X and B parts from above matrices.
Since we know that A represents coefficient matrix, therefore, correct coefficient matrix for our system of equations will be,