Answer:
if 4/4 is 100% then you can divide it by 2 to get 50% and it becomes 2/4 then divide by 2 again to get 1/4 or 25%
Step-by-step explanation:
5h + 2(11-h) = -5
5h +2*11 +2*(-h) = -5
5h +22 -2h = -5
3h + 22 = -5
3h = -5 -22
3h = -27
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Therefore:
h=(-9), as 3 *(-9) = -27
Given:
radius = 30 cm
π = 3.14
Find: Area of the top surface of a circular manhole cover.
Area of a circle = π r²
Area of a circle = 3.14 * (30cm)²
= 3.14 * 900 cm²
Area of a circle = 2,826 cm²
The area of the top surface of a circular manhole cover is 2,826 cm²
