Answer:
x = - 0.2
Step-by-step explanation:
4x+4= -0.3x+3
4x + 0.3x +4= 3 Add 0.3x to both sides
4.3x + 4 = 3 Simplify
4.3x = 3 - 4 Subtract 4 from both sides
4.3x = -1 Simplify
4.3x = -1 Divide by 4.3 to isolate the variable
x = - 0.2
B, because you subtract 9 from both sides(2x-9 leaves 2x by itself then 33-9=24), which leaves you with 2x=24 the you divide everything by 2 which leaves you with x=12
Total surface area equals area of 5 rectangular faces + 2 pentagonal faces
Area of 5 rectangular faces
Area of 2 pentagonal faces can be found by drawing 5 isosceles triangles with height as shown in the diagram and multiply the result by 2.
The toatal surface area is
The correct answer is A
Answer:
x = 14
y = 30
Step-by-step explanation:
x + 10 = 3x - 18
x = 3x - 18 - 10
x = 3x -28
x - 3x = -28
-2x = -28
x = 14
(3x - 18) + (6y - x - 10) = 180
3x - x -18 - 10 + 6y = 180
2x - 28 + 6y = 180
2x + 6y = 180 + 28
2(14) + 6y = 208
6y = 208 - 28
6y = 180
y = 30
I hope this helps!
