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Nostrana [21]
3 years ago
8

SUBSTITUTION METHOD-- help ?!

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
5 0
If you want the x-coordinate of the solution of the system of lineare equations

<span>y - x = 9
10 + 2x = -2y

then you must eliminate y from this sytem.  Rewrite the first equation:  y - x = 9 becomes y = x + 9.  Substitute this (x + 9) for y in  </span><span>10 + 2x = -2y.  y will now be gone.  Solve the resulting equation for x and you'll be done.</span>
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The sum of one-fifth of a number and two- thirds of a number
nekit [7.7K]

Answer:

0.8666666666666666666.

Step-by-step explanation:

7 0
3 years ago
What is the equation of the line that passes through (20, 500) and (16, 300) ​
RUDIKE [14]

hi there! here's my answer for you...

Answer:

y = 50x − 500

Explanation:

Use the slope formula and slope-intercept form y = mx + b to find the equation.

hope this helps. have a good one!

4 0
3 years ago
In the expression 2a+3b-4c, 2a,3b,and -4c are examples of?
erica [24]
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6 0
3 years ago
Read 2 more answers
Help please ASAP really need this
Dimas [21]

Answer:

Blue Line: y = 4x - 1

Green Line: y = -x + 6

Red Line: y = -x

Step-by-step explanation:

Looking at the equation y = mx + b

- The first giveaway is that the green line is the highest y-intercept (b- value). So we can say it's y = -x + 6

- Second giveaway is that the blue line has the lowest y-intercept (again the b- value). So we can say it's y = 4x - 1

- Third giveaway is that the red line has the same x-intercept AND y-intercept which is y = -x. Both intercepts are (0, 0).

Lastly, the rest of the statements are true in correspondence of the last 3 statements.

6 0
3 years ago
I need help here's the picture​
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Answer:

how many siblings do you have-not <u><em>statistical</em></u>

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5 0
3 years ago
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