Addition elimination.
This method is used to eliminate one of the two variables in the equations. This makes it easier to solve for the remaining variable.
Answer:
75%
Step-by-step explanation:
75% of possibility to have gold coin
The one represents the number you color in and the 4 represents how many boxes you have
Step-by-step explanation:
a) the perimeter of the shape is similar to the perimeter of the one full rectangle =
2×(12+9) = 2× 21 = 42 cm
b) the area of the shape =
(12×9) -(4×6) = 108 -24 = 84 cm²