Answer:
x = -3, y = 1
Step-by-step explanation:
To find the value of x and y, find the determinant of original matrix, which would be 21.
Then, substitute the value of x with the solutions to the equations and find the determinant of that matrix, which is -63.
Cramer's rule says that Dx ÷ D is the value of x. So, -63 ÷ 21 = -3.
So, the x-value is -3.
You can find the determinant of the y-value in the same way, and you'll find out that y = 1.
Hope this helped! :)
Answer:
Let x = the number
2(x-5) = 9
2x - 10 = 9
2x = 19
x = 9.5
Step-by-step explanation:
A. 4 yards hope this helped!!!
Answer:
n + p x 3 = t
Step-by-step explanation:
n= Navita's money
p= Pawan's money
t= total money
I think it's 1/2 because 5/10= 1/2
I hope this helps!
