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slamgirl [31]
3 years ago
14

Solve the following system by the substitution method 2x+y=4 y+2x

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
7 0
2xy=4, then you have to solve for y, since the inequality is 4 the answer is simple.
y=4x

Good luck.
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If someone could help me that would be amazing! Thank you!
Anastasy [175]
I’d say 135 or B! I hope this helps!
4 0
3 years ago
4/7m = 2/7( 2m+1 )<br> What is M?<br> Check Solution
aev [14]
4/7m = 2/7(2m + 1)
4/7m = 4/7m + 2/7
4/7m - 4/7m = 2/7
0 = 2/7 (incorrect)

no solution
5 0
3 years ago
Read 2 more answers
Find AB. Round to the nearest tenth if necessary.<br>​
shusha [124]

Answer:

I think the right answer would be 7

Step-by-step explanation:

We got-ta use the equation: CA * BA = DA²

CA = 15 + BA

DA² = 8² = 64

=> (15 + BA) BA = 64

Subtract 15 from each side:

BA(BA) = 49

BA² = 49

Now take the square root of each side

BA = 7

Hope this helps!

3 0
3 years ago
An engineer estimated the weight of a steel beam to be 600 pounds. The actual weight of the beam was 639 pounds. Find the absolu
mario62 [17]

Answer:

Absolute error = 39

Percent Error = 6.10%

Step-by-step explanation:

Actual value = 639 pounds

Observed Value = 600 pounds

The formula to find absolute error is:

Absolute Error = Actual value - Observed Value

                        = 639 - 600

                        = 39

The formula to find Percent error is:

Percent Error = (Actual value - Observed Value / Actual value)*100

                       = (639 - 600/639)*100

                       = 6.10%

                 

7 0
3 years ago
Read 2 more answers
Explain why it is possible to draw more than two different rectangles with an area of 36 square units, but it is not possible to
Inessa05 [86]

Answer:


Step-by-step explanation

you are able to make two squares because you can use the square root of 36 and that twill give you 6 not a decimal.

in comparison if you do the square root of 15 it will give you 3.87298335

7 0
3 years ago
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