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MAXImum [283]
3 years ago
9

{ 5x - y = 5 { 5x - 3y = 15 solve the system using substitution

Mathematics
2 answers:
Iteru [2.4K]3 years ago
8 0

Answer:

Not sure sorry,but can you please help me on the following:

Step-by-step explanation:

Length of a rectangle is 5 cm longer than the width. Four squares are constructed outside the rectangle such that each of the squares share one side with the rectangle. The total area of the constructed figure is 120 cm2. What is the perimeter of the rectangle?

yulyashka [42]3 years ago
5 0

Answer:

Step-by-step explanation:

How nice question 7s it

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I NEED HELP PLEASE, THANKS! :)
Zina [86]

Answer:  \bold{-3x^2+29x-150+\dfrac{946x^2-341x-756}{x^3+6x^2-3x-5}}

<u>Step-by-step explanation:</u>

                        <u>   -3x² + 29x - 150                              </u>

x³ + 6x² - 3x - 5) -3x⁵ + 11x⁴ + 33x³ - 26x² - 36x  -  6

                         -<u>(-3x⁵ - 18x⁴ +  9x³ + 15x²)</u>    ↓        ↓

                                    29x⁴ + 24x³ - 41x² - 36x     ↓

                                 -<u>(29x⁴ - 174x³ - 87x² - 145x</u>    ↓

                                           -150x³ + 46x² + 109x - 6

                                        -<u>(-150x³ - 900x²+450x+750)</u>

                                                       946x² - 341x - 756

 

                         

8 0
3 years ago
How much is 250+250 -(3+4) ?
Vesnalui [34]
<span><span>250+250</span>−<span>(<span>3+4</span>)</span></span><span>=<span>493

There you go hope this helped</span></span>
4 0
3 years ago
Read 2 more answers
Researchers at a lake have determined that the percentage of fish in the lake that are intolerant to pollution can be estimated
dusya [7]

Answer:

a. 23.02 %

b. 49%

c. W

Step-by-step explanation:

Solution:-

- A multi-variable function for the percentage of fish in the lake that are intolerant to the pollution is given as:

                     P ( W , R , A ) = 49 - 1.61W - 1.41R - 1.38A

Where,

             W: percentage of wetland

             R: percentage of residential area

             A: percentage of agriculture

- We are to evaluate the percentage of fish intolerant to pollution in the case where W = 3 , R = 15 , A = 0. We will plug in the values in the modeled function P ( W , R , A ) as follows:

                     P ( 3 , 15 , 0 ) = 49 - 1.61*3 - 1.41*15 -1.38*0\\\\P ( 3 , 15 , 0 ) = 23.02\\

- To determine the maximum percentage of fish that will be intolerant to pollution we will employ the use of critical points. The critical point that is defined by the linear relationship between P and all other parameters ( W, R , A ). The maximum value occurs when W = R = A = 0.

                   P ( 0 , 0 , 0 ) = 49 - 1.61*0 -1.41*0 - 1.38*0 = 49

- Hence, the maximum value of the function is 49%.

- The linear relationship between each induvidual parameter ( R, W , A ) and the function ( P ) is proportional in influence. The extent of influence can be quantized by the constant multiplied by each parameter.

- We see that that ( 1.61*W ) > ( 1.41R ) > ( 1.38A ). The greatest influence is by parameter ( W ) i.e the influence of percentage of wetlands .

                   

6 0
3 years ago
Q5: A school sells tickets to a play. Adult tickets are $8 and student tickets are $4. The school
ella [17]

Answer:

40 adult tickets 68 student tickets

Step-by-step explanation:

8a + 4s = 592

4(a + s = 108)

8a + 4s = 592

4a+ 4s = 432            -

------------------------------

4a = 160

a= 40

s = 180-40

s =68

8 0
3 years ago
5. y = x + 2 solve by graphing, test your solution<br>y = 3x​
yulyashka [42]

Answer:

1

Step-by-step explanation:

6 0
3 years ago
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