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kondaur [170]
2 years ago
11

4x+2y=18, 5x+4y=13 what is the value of x and y

Mathematics
1 answer:
MrRa [10]2 years ago
8 0

Here you go hope it helps

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Write an equation for a line perpendicular to f(x)=5x−1 and passing through the point (5,20)
Bogdan [553]

Answer:

y - 20 = (-1/5)(x - 5)

Step-by-step explanation:

The slope of the given line is 5.  The slope of any line perpendicular to the given line is the negative reciprocal of the given slope:  

Slope of perpendicular line here is -1/5.

We use the point-slope formula as a framework here:

y - 20 = (-1/5)(x - 5)

3 0
2 years ago
Melissa and Rachel like to make funny hats. Melissa has made 20 zebra-printed hats, and Rachel has made h striped hats. Together
iragen [17]

Answer:

h = 22  for Rachel

Step-by-step explanation:

20 + h = 42

h = 42 - 20

h = 22

3 0
3 years ago
Which is the graph of y = 2.5x?<br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
Thepotemich [5.8K]
The answer is D. because first you got solve the problem.

y=2.5x
(turn y to 0)
0= 2.5x
÷2.5  ÷2.5
_________
0=x

So we got one answer (0,0) 

y=2.5x
(turn x to 0)
y= 2.5(0)
 y=2.5

(2.5, 0)

When you do (0,0) (2.5,0) on the graph it will look like D.)
5 0
3 years ago
3&lt;6c+13&lt;5 (Enter your answer in INTERVAL notation, using U to indicate a union of intervals; or enter DNE if no solution e
laiz [17]

Answer:

  (-5/3, -4/3)

Step-by-step explanation:

  3 < 6c +13 < 5 . . . . given

  -10 < 6c < -8 . . . . . subtract 13

  -10/6 < c < -8/6 . . . divide by 6

We can express the interval using reduced fractions as ...

  (-5/3, -4/3)

8 0
3 years ago
Which of these is an example of multi-stage sampling?
zlopas [31]

Answer:

The answer is D.) Choosing New York as a sample, then selecting a sample of zip codes within New York, then sampling the names of people living in those zip codes.

Explanation:

When you use multistage sampling, you take a sample from a population by breaking it down into smaller and smaller groupings (units) at each stage. It's frequently used in nationwide surveys to collect data from a big, geographically dispersed group of people. I hope I helped! ^-^

5 0
2 years ago
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