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kirza4 [7]
3 years ago
10

Solve the inequality for w. 5 (w – 3) < 5W + 20

Mathematics
2 answers:
Pachacha [2.7K]3 years ago
8 0

Answer:

All real solutions

Step-by-step explanation:

5w - 15 < 5w + 20

subtract 5w from both sides

-15 < 20

since it is true and there are no variables left. all real solutions will make this true

defon3 years ago
3 0

Answer:

w < w + 7

Step-by-step explanation:

5w-15 < 5w+20

divide all by 5 =

w < w + 7

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Hope this helps!

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3 years ago
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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
Jill had a certain amount of money. she spent 15$ downloading new songs. she has 2/5 of the original amount left. how much money
Lostsunrise [7]
Let's call the original amount of money x.

We know that she has 2/5 of the original amount left, and that this is equal to $15.

Therefore, 2/5(x) = 15, and x = $37.50.
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3 years ago
5 STARS BRAINLYEST AND 15 POINTS!!!!!!!!!!!!!!!!!
kirza4 [7]
My best guess is the third one. Really sorry if I’m wrong.
8 0
3 years ago
What is the measure of YB ?
BARSIC [14]

Answer:

YB = 12

Step-by-step explanation:

The product of the measures of the parts of one chord are equal to the product of the measures of the parts of the other chord, that is

7YB = 6 × 14 = 84 ( divide both sides by 7 )

YB = 12

3 0
3 years ago
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