Perimeter of rectangle = 2L + 2W
Area = L x W
L x W = 50
2L + 2W = 30
There's a quick way to determine this. Find the factors of 50 as a product.
2 x 25, 5 x 10.
We can use these factors as sides (dimensions).
2x2 + 2x25 = 4 + 50 = 54, incorrect factors.
2x5 + 2x10 = 10 + 20 = 30, correct.
Your dimensions are 5 and 10.
Answer:
y = 1
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (7, 2) and (x₂, y₂ ) = (0, y)
m = , that is
= ( cross- multiply )
7(y - 2) = - 7 ( divide both sides by 7 )
y - 2 = - 1 ( add 2 to both sides )
y = 1