Answer:
256x-81y
Step-by-step explanation:
Lets say she has x money
Now she spent 3/5of x means 2/5 is left
2/5*x=45
x=112.5
Answer:
θ = 27.47°
Step-by-step explanation:
This problem can be represented as a right-angled triangle, as shown in the diagram below.
To find θ, we apply the tangent part of the trigonometric ratios SOHCAHTOA:
tanθ = 
In the diagram, opposite = 1.3 m and adjacent = 2.5 m
Hence:
tanθ = 
tanθ = 0.52
θ = 
θ = 27.47°
The ramp forms 27.47° with the ground.
An isosceles triangle has 2 sides of the same length and they are in this case 5 units long so 5+5 and then we can only assume that the 3 side is 3-2 units long since we don’t have an approximate length