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aleksandrvk [35]
3 years ago
5

How to do substitution method

Mathematics
1 answer:
Nataly_w [17]3 years ago
8 0

just switch two numbers / signs

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Find x.<br><br><br><br> Question 1 options:<br><br> 6<br><br><br> 3<br><br><br> 9<br><br><br> 12
fredd [130]
Maybe it’s 3 but it actually depends on the equation . . .
6 0
3 years ago
Which scatter plot represents the data shown in the table?
svetoff [14.1K]
The answer would be A :)
3 0
2 years ago
Solve similar triangles can someone please answer
Black_prince [1.1K]

Answer:

CB= 4

Step-by-step explanation:

the triangles are in AA similarity.

AB/AD = BC/DE

4/12 = x/12

CROSS MULTIPLY;

x = 48/12

x = 4

5 0
3 years ago
1. Slove the system of equations, first by graphing, and then algebraically. (8 points) y=x-2 and y=-2x+7
Anton [14]

The solution of the equation is x=3 and y=1

Explanation:

The equations are y=x-2 and y=-2 x+7

First we shall solve the equation graphically.

The image of the graph is attached below.

This contains the solution to the system of equations.

The equations y=x-2 and y=-2 x+7 are plotted on the graph.

The intersection of these two equations are the solutions of the system of equations.

Thus, the intersection of the two equations are x=3 and y=1

Now, we shall solve the equation algebraically.

Let us solve the equation using substitution method.

Let us substitute y=x-2 in y=-2 x+7, we get,

x-2=-2x+7

Adding both sides by 2x, we have,

3x-2=7

Adding both sides by 2, we get,

3x=9

Dividing both sides by 3,

x=3

Thus, the value of x is 3.

Substituting x=3 in y=x-2, we get,

y=3-2\\y=1

Thus, the value of y is 1.

Hence, The solution of the equation is x=3 and y=1

4 0
3 years ago
Mary sells lemonade at $1.50 a glass.  She spent $8.00 on supplies.  She ended with more than $28.00
Elena-2011 [213]

Answer:

(C.) 1.50n – 8.00 > 28.00

Hope this helped you!!!

<u><em>Love,</em></u>

<u><em>Morgan Taylor!</em></u>

3 0
3 years ago
Read 2 more answers
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