Answer:
$66
Step-by-step explanation:
that's the answer I thinkkkk
Answer:
X = -3
Step-by-step explanation:
Multiply both sides by 3
3x 1/3(3) = -3(3)
3x/3 = -9/3
divide both sides by 3 to isolate x
x = -3
= (5x - 3x) + (2x - x)
= 2x + x
= 3x
Note: 1x is the same as ‘x’
1x = x
Answer:
(i) F = 25 N
(ii) F = 35.36 N
(iii) F = 43.3 N
Step-by-step explanation:
We note that the component of force acting along the incline surface is given by the relation
Force, acting parallel to the incline plane,
= M×g×sin(θ)
Given that the weight of the body is given as 50 N, we have;
M×g = 50 N
Therefore we have;
(i) For the plane with angle of elevation = 30°
= M×g×sin(θ) = 50 × sin(30°) = 25 N
The force
= F = 25 N
F = 25 N
(ii) For the plane with angle of elevation = 45°
= M×g×sin(θ) = 50 × sin(45°) = 50 × (√2)/2 = 25·√2 N
= F = 25×√2 N = 35.36 N
F = 35.36 N
(iii) For the plane with angle of elevation = 60°
= M×g×sin(θ) = 50 × sin(60°) = 50 × (√3)/2 = 25·√3 N
= F = 25×√3 N = 43.3 N
F = 43.3 N.
Answer:


Step-by-step explanation:
Given


Required
Solve by elimination
To do this, we subtract both equations (to eliminate x)

- 
--------------------


Substitute
in 

Solve for 3x

Solve for x

