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Nitella [24]
3 years ago
12

What is the result of adding these two equations?

Mathematics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

When adding these two equations we get the value of x is \frac{14}{3} and y is  \frac{52}{3}

Therefore x=\frac{14}{3} and  and  y=\frac{52}{3}

Step-by-step explanation:

Given two equations are 5x-y=6\hfill (1)-2x+y=8\hfill (2)To find the addition of these two given equations :

Adding the equations (1) and (2) we get

5x-y=6

-2x+y=8

_______

3x=14

x=\frac{14}{3}

Substitute the value x=\frac{14}{3} in equation (1) we get

5(\frac{14}{3})-y=6

-y=6-\frac{70}{3}

-y=\frac{18-70}{3}

-y=-\frac{52}{3}

Therefore   y=\frac{52}{3}

When adding these two equations we get the value of x is \frac{14}{3}

Therefore x=\frac{14}{3} and   y=\frac{52}{3}

​

​

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Can you put this into least to greatest -85m -2.4m 0m 1011m 88m​
zmey [24]

Answer:

-85m, -2.4m, 0m, 88m, and 1,011m

Step-by-step explanation:

4 0
3 years ago
Please help! What is the answer?
telo118 [61]

Answer: 6.4cm

Step-by-step explanation:

The area of a trapezoid is given as:

= 1/2(a + b)h

We then slot the given values into the formula. This will be:

1/2(15.8 + b) × 7.3 = 81.03.

7.3(15.8 + b)= 81.03 × 2

7.3(15.8 + b) = 162.06

115.34 + 7.3b = 162.06

7.3b = 162.06 - 115.34

7.3b = 46.72

b = 46.72/7.3

b = 6.4

Therefore, the answer is 6.4cm.

5 0
3 years ago
Graph the system of equations: <br> y=-x^2+3x-1<br> 2y-1=x
Nana76 [90]
Y = -x² + 3x - 1
x = 2y - 1

  x = 2(-x² + 3x - 1) - 1
  x = 2(-x²) + 2(3x) + 2(-1) - 1
  x = -2x² + 6x - 2 - 1
  x = -2x² + 6x - 3
<u>- x              - x      </u>
  0 = -2x² + 5x - 3
  x = <u>-(5) +/- √((5)² - 4(-2)(-3))</u>
                        2(-2)
  x = <u>-5 +/- √(25 - 24)</u>
                   -4
  x = <u>-5 +/- √(1)
</u>              -4
  x = <u>-5 +/- 1</u>
             -4
  x = <u>-5 + 1</u>   or  x = <u>-5 - 1</u>
           -4                    -4
  x = <u>-4</u>              x = <u>-6</u>
        -4                    -4
  x = 1               x = 1.5

2y - 1 = x
2y - 1 = 1
<u>   + 1  + 1</u>
     <u>2y</u> = <u>2</u>
      2     2
       y = 1
 (x, y) = (1, 1)
or
2y - 1 = x
2y - 1 = 1.5
<u>    + 1 + 1    </u>
     <u>2y</u> = <u>2.5</u>
      2      2
       y = 1.25
 (x, y) = (1.5, 1.25)
The two solutions is equal to (1, 1) and (1.5, 1.25).
<u />
4 0
3 years ago
Pls help will give brainliest
ki77a [65]

Answer:

B. the mean of city A is greater than the mean of city B

Step-by-step explanation:

Find mean by adding every number than dividing by the total of numbers added so...

97+98+96+98+99=488 and 488/5=97.6 which is higher than the mean of city B

3 0
3 years ago
Find the solution to the equation <br> 3x + 1 = 6x + 1
Musya8 [376]

Answer:

x=0

Step-by-step explanation:

First, start by getting rid of your X values. You must take your lowest X value and find a way to move it to the other side. Our lowest X value is 3x, and it's currently being added to 1.

In order to move it, we must subtract it on both sides.

3x + 1 = 6x + 1

-3x        -3x

1 = 3x + 1

Now we must get the X value by itself, which means doing everything reverse. For example, you would subtract the 1 instead of adding it.

1 = 3x + 1

-1         -1

3x = 0

divide by 3 on both sides

x = 0

Let's check

3(0) + 1 = 6(0) + 1

1 = 1

This is a true statement

3 0
3 years ago
Read 2 more answers
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