First, draw a diagram for a building. Then, from the top of the building, draw a slanting line down to the ground level. That angle is 20 degrees. Then draw another line from the top of the angle to the ground. But this time, nearer to the building. That angle would be 23 degrees. The distance at the ground level between the two lines is 80. The diagram would look like this:
Answer:
Step-by-step explanation:
We have an equation, and the question is asking for us to solve y. So to solve, we have to isolate y.
6x - 4y = 12
Subtract 6x from both sides :
-4y = 12 - 6x
Divide both sides by -4 :
x= A ticket
y=b ticket
x+y=500
10x+60y=6000
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10x+60y=6000
- x+y=500 (*10) ---> 10x+10y=5000
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10x+60y=6000
- 10x+10y=5000
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50y=1000
y=1000/50
y=20
b ticket =20
x+y=500
x+20=500
x=500-20
x=480
a ticket=480
answer is the last option ,