Answer:
The correct answer is not shown in your picture. You must get a = 60.
Step-by-step explanation:
(1/2)a + (2/3)b = 50
b = 30
(1/2)a + (2/3)(30) = 50
(1/2)a + 20 = 50
(1/2)a + 20 - 20 = 50 - 20
(1/2)a = 30
2 * (1/2)a = 2 * 30
a = 60
The correct answer is not shown in your picture. You must get a = 60.
Answer:
864
Step-by-step explanation:
A=6a^2=6·12^2=864
Answer:
20 is 45
25 is 50
Step-by-step explanation:
The surface area of the cube is 150 in^2
Further Explanation:
A cube is a six-faced figure with same side length.
The formula for calculting the surface area of cube is given by:

Here s is the length of side.
Given
Side length =s =5 in

The area of cube is 150 in^2
Keywords: Surface area, Cube
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