Replace x with 1/2 then solve for y:
5(1/2) - 2y = 4
2 1/2 -2y = 4
Subtract 2 1/2 from each side:
-2y = 1 1/2
Divide both sides by -2:
y = 1 1/2 / -2
y = -3/4
To solve this question, use the Cube surface area formula
Area = 6a^2 in which a = edge.
edge = 8.5
Area = 6(8.5)²
Simplify. Follow PEMDAS
Area = 6(72.25)
Area = 433.5
(C) 433.5 in² is your answer
hope this helps
Assuming the diameter is one, it should be (pi)/2 or 1.57 units.
Take 276.25 away from 325 which gives 48.75 now divide this sum by 325 and multiply by 100 to arrive at the percentage reduction. 48.75/325*100 = 15 ANSWER 15%