Answer:
The surface area of the figure is 124
Step-by-step explanation:
x = # of balcony seats
y = # of orchestra seats
We have to create a system of equations to solve this problem
x + y = 256
$8x + $12y = $2,716
We will solve this system of equations by elimination.
Multiply the first equation by -8
-8x - 8y = -2048
8x + 12y = 2716
Let's add the equations together
0 + 4y = 668
Simplify the left side
4y = 668
Divide both sides by 4
y = 167
We can subtract 167 from 257 to get the number of balcony seats.
257 - 167 = 90 balcony seats
There are 167 orchestra seats and 90 balcony seats
Answer:
A = 41.4°
Step-by-step explanation:
Reference angle = A
Length of Adjacent side = 6
Length of Hypotenuse = 8
Apply the trigonometric function, CAH.
Cos A = Adj/Hyp
Substitute
A = 41.4° (approximated to the nearest tenth)
Answer:
I think we can easily see equilateral triangle. That means triangle will have all equal side. So we can arrange equation with this.
8 = 2x-5
8 = y+3
Use algebra to solve first 13 = 2x. x = 6.5. Now we do same on other, 8-3 = y
5 = y.
Therefore answer is
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X = 6.5</u></h2><h2><u>
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Y = 5</u></h2><h2><u>
</u></h2>
:)
