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BARSIC [14]
3 years ago
14

Use elimination to solve for x and y:

Mathematics
2 answers:
tankabanditka [31]3 years ago
4 0

Answer:

multiply second eqyation by 9

Step-by-step explanation:

then subtract with 1 st eqn

dimaraw [331]3 years ago
4 0

q9x-4y=19

9x=19+

1)x=19+4y/9

x+4y=19

2)x=19-4y

1 and 2

x=19+4y/9=x=19-4y

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75x + 50 = 600<br> What is x
Nezavi [6.7K]

<u>Answer:</u>

  • x = 7.333

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

  • 75x + 50 = 600
  • => 75x = 600 - 50
  • => 75x = 550
  • => x = 550 ÷ 75
  • => x = 7.33

<u>Conclusion:</u>

Therefore:

  • x = 7.333

Hoped this helped.

GeniusUser

3 0
2 years ago
Read 2 more answers
-11.3 is rational or irrational ? explain? 0.083 and 2.1371938 to please if its not much to ask?
zloy xaker [14]
Ignore the - sign for now.   11.3   =   11.3        113
                                                         -------  = ----------
                                                             1             10

Since this is the ratio of two integers, 11.3 is rational.  So is 11.3.

                                                                             83
If you really mean   <span>0.083, this is rational:  it is ---------
                                                                            1000

If y ou meant </span><span>0.083333333 ... , that's also rational:  1/12 is equivalent.</span>
3 0
3 years ago
Which of the following ordered pairs lies on the graph of h(x) = -2x²?
Delvig [45]

Answer:

i think 1-2

Step-by-step explanation:

8 0
3 years ago
The price of a car has been reduced from $15,000 to $9,000. What is the percentage decrease of the price of the car?
Fynjy0 [20]

Answer:

40<em>% is the decrease.</em>

<em />

Step-by-step explanation:

<em>To figure out the percentage decrease, you would first subtract the two numbers. </em>

<em />

<em />15000 - 9000 = 6000<em />

<em />

<em>Next, you would divide that number by the total.</em>

<em />

<em />6000 / 15000 = .4<em />

<em />

<em />15000 * .4 = 6000<em />

<em />

<em />15000 - 6000 = 9000<em />

<em />

<em />40<em>% </em><em>would be the decrease percentage. </em>

3 0
3 years ago
If this cube of edge 20 cm long is cut into smaller cubes of edge 10 cm, how many of these smaller cubes do I get?
BartSMP [9]
You’d get 4 cubes, each with an edge of 10 cm
7 0
3 years ago
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