37 ?%
---- = ----
148 100
37*100=3700
--------- = 25% <---hope this helps
148
Answer:
heres one for you
Step-by-step explanation:
The angle of elevation<span> of an object as seen by an observer is the </span>angle<span> between the horizontal and the line from the object to the observer's eye (the line of sight). since you did give the horizontal distance between amy and the hoop, so let us represent it as x.
so the angle of elevation = tan^-1 ( (8 - 5.9) / x)
angle elevation = tan^-1 ( 2.1 / x )</span>
You can use elimination
x - y = 7
0.5x + y = 5
1.5x = 12
x = 8
Then plug in x into one of the original equations
8 - y = 7
y = 1
Solution is (8,1)
Method:
Simultaneous equations
Explanation:
First we will need to get both equations to have the same subject, to do this we will multiply the bottom equation by 2.
1) 2a-3c=-6
2) a+2c=11 x2
Becomes
2) 2a+4c=22
Now we will make both equations equal to the same subject (2a)
1) 2a=3c-6
2) 2a=-4c+22
Because they are both equal to 2a, they are therefore equal to each other, so:
3c-6=-4c+22
7c=28
c=4
Now substitute c back into either equation to get a:
a+2c=11
a+2(4)=11
a=3
