Answer:
x=11/2
Step-by-step explanation:
First we can combine similar terms on the left side. 3x + x is 4x and 20-15 is 5
Now that we have combined them, we are left with 4x+5=27
Subtract 5 on both sides to cancel out the 5.
4x=22
Divide both sides by 4
x=22/4
Simplify
x=11/2
Find the area of the triangle and the multiply by the depth of the solid.
Area = 1/2 x base x height
Area = 1/2 x 3 x 5
Area = 7.5 sq. ft.
Volume = 7.5 x 4 = 30 cubic ft.
Answer:
Step-by-step explanation:
15
