-3x = -3 because you would multiply one of the equations by -1 to eliminate y.
Answer:
c
Step-by-step explanation:
the normal equation is 120 and c is 120
Because they all go into 100 easily. for example 10*10=100 5*20=100
A. Let x = cheese and
y = chocolate
2x + y = 25
x + y = 20
B. Subtract the second equation from the first.
2x + y = 25
-(x + y = 20)
-—————
x = 5
Plug 5 back in to the second equation and solve for y.
x + y = 20
5 + y = 20
Subtract 5 from both sides.
y = 15
5 cheese and 15 chocolate
Used elimination method because coefficients on the y values were both 1 so it was easy to subtract the equations and eliminate the y variable.
If the mug was traced in the center of the paper, she could fold the paper in half vertically and horizontally to find the center point of the mug.
