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liq [111]
2 years ago
15

What’s the answer A. 2 B.4 C.6 D. 12

Mathematics
2 answers:
dem82 [27]2 years ago
4 0

Answer:

C.6

Step-by-step explanation:

x - y = 4

x + y = 8

----------------------Add

2x = 12

 x = 6

x coordinate of the solution to the system is 6

Answer

C.6

Firdavs [7]2 years ago
3 0
The Answer is C) 6 I believe
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Answer:

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Step-by-step explanation:

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2 years ago
Determine whether the given value is a discrete or continuous variable. People are asked to state how many times in the last mon
seraphim [82]

Answer:

The given value is discrete  variable.

Step-by-step explanation:

Discrete Variable:

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3 years ago
A concession stand at an athletic event is trying to determine how much to sell cola and iced tea for in order to maximize reven
Cerrena [4.2K]

Solution :

Demand for cola : 100 – 34x + 5y

Demand for cola : 50 + 3x – 16y

Therefore, total revenue :

x(100 – 34x + 5y) + y(50 + 3x – 16y)

R(x,y)  = $100x-34x^2+5xy+50y+3xy-16y^2$

$R(x,y) = 100x-34x^2+8xy+50y-16y^2$

In order to maximize the revenue, set

$R_x=0, \ \ \ R_y=0$

$R_x=\frac{dR }{dx} = 100-68x+8y$

$R_x=0$

$68x-8y=100$  .............(i)

$R_y=\frac{dR }{dx} = 50-32x+8y$

$R_y=0$

$8x-32y=-50$  .............(ii)

Solving (i) and (ii),

4 x (i)    ⇒       272x - 32y = 400

     (ii)   ⇒   (-<u>)     8x - 32y = -50   </u>

                        264x        = 450

∴   $x=\frac{450}{264}=\frac{75}{44}$

     $y=\frac{175}{88}$

So, x ≈  $ 1.70      and    y = $ 1.99

    R(1.70, 1.99) = $ 134.94

Thus, 1.70 dollars per cola

          1.99 dollars per iced ted to maximize the revenue.

Maximum revenue = $ 134.94

4 0
3 years ago
F(t)=t^2-3t<br> g(t)=2t+1<br> find f(g(t))
statuscvo [17]

Answer:

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Read 2 more answers
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