Answer: Equation : 7x -3 = markers left
Step-by-step explanation: x represents the number of markers in each box
so 7 times the number of markers in each box is the total you started with, subtract three and then you the markers that are left
Answer:
118 degrees
Step-by-step explanation:
m = 124 / 2 = 62
Sum of opposite angles m and n is supplementary,
m + n = 180
62 + n = 180
n = 180 - 62
n = 118 degrees
Answer:

Step-by-step explanation:
6. Practice
The dimensions of the current park are x long and x wide.
The new park will be 4 longer and 2 thinner.
Its new dimensions will be x + 4 long and x – 2 wide.
Its new area will be
A = width × length = (x – 2)(x + 4)
Find the product

Answer:
x = -3
y = 1
Step-by-step explanation:
3x + 5y = -4
x + 5y = 2 (Solve for x) ------ New Equation: x = 2 - 5y
Solve for the first equation by plugging in the value of x, which is 2 - 5y.
3(2 - 5y) + 5y = -4
6 - 15y + 5y = -4
-10y = -10
y = 1
Use the value of y to solve for x
x + 5(1) = 2
x = 2-5
x = -3