1/3(21 - 3a) = 6 - a
7 - a = 6 - a
7 = 6
Therefore, the equation has no solution.
Answer:
Step-by-step explanation:
If you were given graphs of the equations, then the solution is the (x,y) where the lines intersect.
The lines intersect at (2,4).
We are given with the slope of a ramp that is equal to 2/5, that is x = 5 and y = 2. In this case, we can find the angle of elevation by using the formula: tan Ф = y/x
using a calculator (inverse tangent or arctangent), Ф = 21.8 degrees. In this case, the answer is D. 22 degrees.
Answer:
L = 3.9
Step-by-step explanation:

L = 3.9