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ValentinkaMS [17]
4 years ago
12

Solve the equation 7+3m=28 A)m=18 B)m=11 2/3 C)m=9 D)m=7

Mathematics
1 answer:
Shtirlitz [24]4 years ago
6 0
Firstly, you would subtract 7 from both sides, leaving you with 3m=21. You would then divide by three in order to be left with total value of m. 3m divided by 3 is m. 21 divided by 3 is 7. Therefore m=7 :)
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Answer:

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Step-by-step explanation:

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point B is 2 units * 1 from point A, so y = -3

3 0
3 years ago
Friends needs this anwsered help
olya-2409 [2.1K]

Answer:

  3, 8, 14, 30, 58

Step-by-step explanation:

As with all formulas, put the numbers in place of the corresponding variables, and do the arithmetic.

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4 0
2 years ago
Compare the expression 8×3+4 and 8×(3+4)
adelina 88 [10]
This is a lesson in order of operations...

PEMDAS- parentheses, exponents, multiplication, division, addition, and subtraction... That is the order in which you have to proceed during any math problem..

Your question gives an excellent example of why.

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in this question, we would do multiplication then addition for the answer...

24 + 4 = 28

Now the other one

8 x (3+4)  =
in this expression, we would do what is inside the parentheses first, the addition.  Then we would multiply...

8x 7 = 56

You see we have the same numbers and we are performing the same operations, but the difference is in the order that we perform them.  As you can see it does make a difference because we get a different result.

28 vs 56
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
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