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bekas [8.4K]
3 years ago
10

Add Each pair of expressions (4x-7) and (7-4x) Answer ASAP

Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0

Answer:

0

Step-by-step explanation:

(4x-7)+(7-4x)

cancels each other

which makes it zero

aliina [53]3 years ago
5 0
<h2><u>Required Answer</u>:</h2>

Given pair of expression :

\longrightarrow \sf {(4x -7) \: and \: (7-4x) }

<u>Solution</u> :

Firstly put the sign of addition (+) at the place of and.

\longrightarrow \sf {(4x -7) + (7-4x) }

Now, remove the brackets.

\longrightarrow \sf {4x -7 + 7-4x }

Group like terms. Here, 4x and -4x ; -7 and +7 are like terms.

\longrightarrow \sf {\cancel{4x -4x} \cancel{ -7 + 7}}

\implies \sf \red {0 }

<u>So, the answer is 0.</u>

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Sam ran 3 1/4 miles on Tuesday and then ran 2 5/6 miles on Wednesday. How many total miles did Sam run ?
julsineya [31]

Answer:

6  1/12 miles total

Step-by-step explanation:

3 1/4 = 13/4

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13/4 = 39/12

17/6 = 34 /12

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8) Choose the correct linear system of inequalities for the graph given.
ziro4ka [17]

Answer:

To graph a linear inequality in two variables (say, x and y ), first get y alone on one side. Then consider the related equation obtained by changing the inequality sign to an equality sign. The graph of this equation is a line.

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Finally, pick one point that is not on either line ( (0,0) is usually the easiest) and decide whether these coordinates satisfy the inequality or not. If they do, shade the half-plane containing that point. If they don't, shade the other half-plane.

Graph each of the inequalities in the system in a similar way. The solution of the system of inequalities is the intersection region of all the solutions in the system.

Example 1:

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y≤x−2y>−3x+5

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Since the inequality is ≤ , not a strict one, the border line is solid.

Graph the straight line.

Consider a point that is not on the line - say, (0,0) - and substitute in the inequality y≤x−2 .

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This is false. So, the solution does not contain the point (0,0) . Shade the lower half of the line.

Similarly, draw a dashed line for the related equation of the second inequality y>−3x+5 which has a strict inequality. The point (0,0) does not satisfy the inequality, so shade the half that does not contain the point (0,0) .

The solution of the system of inequalities is the intersection region of the solutions of the two inequalities.

Example 2:

Solve the system of inequalities by graphing:

2x+3y≥128x−4y>1x<4

Rewrite the first two inequalities with y alone on one side.

3y≥−2x+12y≥−23x+4−4y>−8x+1y<2x−14

Now, graph the inequality y≥−23x+4 . The related equation is y=−23x+4 .

Since the inequality is ≥ , not a strict one, the border line is solid.

Graph the straight line.

Consider a point that is not on the line - say, (0,0) - and substitute in the inequality.

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This is false. So, the solution does not contain the point (0,0) . Shade upper half of the line.

Similarly, draw a dashed line of related equation of the second inequality y<2x−14 which has a strict inequality. The point (0,0) does not satisfy the inequality, so shade the half that does not contain the point (0,0) .

Draw a dashed vertical line x=4 which is the related equation of the third inequality.

Here point (0,0) satisfies the inequality, so shade the half that contains the point.

The solution of the system of inequalities is the intersection region of the solutions of the three inequalities.

Step-by-step explanation:

I got it right

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16. hope that helps. :)

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Step-by-step explanation:

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