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elena55 [62]
3 years ago
5

Twice the sum of m and n.

Mathematics
1 answer:
Sholpan [36]3 years ago
3 0

2(m+n) is the answer. The question is asking for the sum of m and n then multiplying that sum by 2                

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Here are four questions A) 2/5 B) 2/3 C) 1/4 D) 1/10 put them in order
lara [203]

Answer:

1/10, 1/4, 2/5, 2/3.

Step-by-step explanation:

Convert the fractions into decimals.

2/5 = 0.4

2/3 ≈ 0.66666

1/4 = 0.25

1/10 = 0.1

Arrange from smallest to largest.

0.1, 0.25, 0.4, 0.6666

Change back to fraction form.

1/10, 1/4, 2/5, 2/3.

3 0
3 years ago
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Two lines have the given equations. Use the LINEAR COMBINATION METHOD to solve.
Maurinko [17]

Using linear combination method, the solution to given system of equations are (-7, -15)

<h3><u>Solution:</u></h3>

Linear combination is the process of adding two algebraic equations so that one of the variables is eliminated

Addition is used when the two equations have terms that are exact opposites, and subtraction is used when the two equations have terms that are the same.

<u><em>Given system of equations are:</em></u>

2x - y = 1  ---- eqn 1

3x - y = -6 ------ eqn 2

Subtract eqn 2 from eqn 1

2x - y = 1

3x - y = -6

(-) -------------

-x = 7

<h3>x = -7</h3>

Substitute x = -7 in eqn 1

2(-7) - y = 1

-14 - y = 1

y = -14 - 1 = -15

<h3>y = -15</h3>

Thus the solution to given system of equations are (-7, -15)

8 0
3 years ago
What is the solution R-7=1?? Thank
cluponka [151]

Answer: R=8

Step-by-step explanation: R-7=1, R+7=1+7, R=8.

6 0
3 years ago
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Click on the photo to get a better view, I really don’t understand it
zaharov [31]

Answer:

1)107

2)43

Step-by-step explanation:

Triangles interior angles add up to 180 degrees. In the first one, the first two angles are 31and 42, and if interior angles add up to 180, the equation should be 31+42+x=180 x=107.

Second one is hardes. A square means a right angle, or 90 degrees. 180-90 is 90. Next, we have the two angles x, and x+4 We know that triangles interior angles add up to 180 degrees, so x+x+4+90=180 2x+94=180 2x=86 x=43

Hope this helps :D Please mark brainliest if correct :D

3 0
3 years ago
Charlie runs at a speed of 3 yards per second. About how many miles per hour does Charlie run
enyata [817]
To find the answer, you first must find how many yards Charlie can run in a minute. Since there are 60 seconds in a minute, you multiply 3 times 60, which is 180. Then you must multiply this number by 60 again, because there are 60 minutes in an hour. This equals 10,800, your answer.


Charlie can run 10,800 yards in an hour.
7 0
3 years ago
Read 2 more answers
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