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AlexFokin [52]
4 years ago
15

6x + 5y = 4 - 6x + y = 20

Mathematics
2 answers:
Masja [62]4 years ago
5 0

Answer:

x = -8/3

y = 4

Step-by-step explanation:

I assume you want to solve for x and y.

The best way to do this with the two formulas given is elimination. This means add the two equations together.

6x + 5y = 4

-6x + y = 20

The 6 x and -6x will cancel each other. By adding the like terms of the two together you will come out with

6y = 24

Now solve for y by dividing both sides by the 6.

y = 24/6 = 4

Now that we have y, you can plug it into one of the equations and solve for x.

Let's use -6x + y =20.

So plug in the 4 for y to get -6x + 4 = 20

Subtract the 4 from both sides then solve for y by dividing both sides by the -6.

-6x = 16

x = -16/6

You can reduce that down so that x = -8/3.

hoa [83]4 years ago
4 0

Answer:

<h3>Y=5 X=6 </h3>

Step-by-step explanation:

<h3><u><em>WHAT YOU WANNA DO IS  GETT THE Y BY IT SELF SO MULTIPLY Y ON BOTH SIDES </em></u></h3>
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Question 3
Yuliya22 [10]

Answer:

Median and Mode.

Step-by-step explanation:

The data could be represented in table form in ascending order as:

 <u>Number of meals</u>                      <u> Frequency</u>

      2                                                     2

       3                                                     3

       4                                                     2

       19                                                    1`

On the basis of the data now we find the mean, median and mode:

Mean= average of the data

Mean=\dfrac{2\times 2+3\times 3+4\times 2+19\times 1}{2+3+2+1}=\dfrac{40}{8}=5

Hence mean is 5.

Median is the central tendency of the data

on looking at our data we see that the Median=3.

also the mode of the data is the entry corresponding to the highest entry.

Hence the highest frequency is 3 and the corresponding value is 3.

Hence, Mode=3

Hence, the most appropriate measure of center for this situation is :

Median and Mode.

4 0
3 years ago
1.write the equations of three lines whose graphs are parallel to one another . 2.write the equation of two lines whose graphs a
Arlecino [84]
Y = -2x + 1
y = -2x + 2
y = -2x + 3
these are all parallel lines because they have the same slopes (-2) but different y intercepts.

y = 3x + 4
y = -1/3x + 3
these are perpendicular lines because they have negative reciprocal slopes.

slope of a line parallel to the x axis : If it is parallel to the x axis, it is a horizontal line and has a slope of 0.

slope of a line perpendicular to the x axis : if it is perpendicular to the x axis, it is a vertical line with a slope that is undefined.

slope of line parallel to the y axis : vertical line, undefined slope

slope of a line perpendicular to the y axis : horizontal line, slope of 0


6 0
4 years ago
Read 2 more answers
On average, sloths spend 16.5 hours per day sleeping. what percent of the day do sloths spend sleeping? round your answer to the
Oliga [24]
Unknown if you wanted to be clever
on average means typically so there is data called "outliers"
Moreover it doesn't say what average percent of the day and it doesn't mention the planet, namely Earth..
there could be sloths on other planets and those other planets are likely to have different hours in the day.
3 0
3 years ago
Mrs.Collins is buying four 95-oz bottles of laundry detector detergent her family. Each bottle has th same price. The total cost
scoray [572]

Answer:

13 cents

Step-by-step explanation:

$49.80 is INCLUDING tax of $1.92. So the cost before tax is:

49.8 - 1.92 = $47.88

This is the price of FOUR bottles. So price PER BOTTLE is:

47.88/4 = $11.97

This $11.97 is a 95 ounce bottle.

We need to find price PER OUNCE, so we divide the price by 95:

11.97/95 = $0.126 PER OUNCE

Rounded to 2 decimal, that would be around $0.13 per ounce

5 0
3 years ago
A car travels 220 miles in 3 hours 20 minutes. What is its average speed?
nataly862011 [7]
I believe the answer is 68.75…
3 0
2 years ago
Read 2 more answers
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