You have 180 degrees in a triangle so 180-40-51=89
Answer:
3/2
Step-by-step explanation:
unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity so:
1.1/3= 3.1+1÷3=4/3
8/9÷4/3=3/2
If you graph this, your first point will be at (0,5), as the ramp is at the warehouse door but 5 feet up. The second point is (10,0) as it is touching the ground but it's 10 feet away from the warehouse.
To find slope, you do (y2-y1)/(x2-x1).
When substituting in the variables, you get (0-5)/(10-0), which is -5/10, which is simplified to -1/2. Of course, that is when the warehouse is Quadrant II. If you look at it from another point of view, the slope will be positive so your answer is A) 1/2.
If this was unclear feel free to comment :)
40% is the answer because 6/15 = 0.4