C. 4 or more D. 3 Geometry math question
1 answer:
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The value of x is 3.
Solution:
Length of the top rectangle = x ft
Width of the top rectangle = x ft
Height of the top rectangle = 3x ft
Volume of the top rectangle
Volume of the top rectangle cubic feet
Length of the bottom rectangle = ft
Width of the bottom rectangle = ft
Height of the bottom rectangle = 0.5 ft
Volume of the bottom rectangle
Volume of the bottom rectangle cubic feet
Total concrete for both pieces = 90 cubic feet.
Volume of top + volume of bottom = 90 cubic feet
Solve by factoring.
x = 3,
Solve using quadratic formula,
Ignore the complex roots.
The value of x is 3.