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jeka57 [31]
3 years ago
10

The sum of 3 consecutive odd #s is 51 what are the 3#s?

Mathematics
2 answers:
kari74 [83]3 years ago
8 0

Answer: 15, 17, 19

Step-by-step explanation:

RideAnS [48]3 years ago
3 0

Answer:

let x, x+2, x +4 are the 3 consecutive ODD numbers

so

x + x +2 +x +4 = 51

3x + 6 = 51

3x =51-6

3x = 45

x = 45/3

x = 15

x + 2 = 15 + 2 = 17

x + 4 = 15 + 4 = 19

Step-by-step explanation:

proof

15 + 17 + 19 =51

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8x + 6 - 2x = 34 x= ?
e-lub [12.9K]
8x + 6 - 2x = 34x

Simplify 8x +6 - 2x to 6x + 6:
6x + 6 = 34x

Subtract 6x from both sides:
6 = 34x- 6x

Simplify 34x - 6x to 28x:
6 = 28x

Divide both sides by 28:
\frac{6}{28} = x

Simplify \frac{6}{28} to \frac{3}{14} :
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Now switch sides and the answer is:

x = \frac{3}{14}

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Edward evaluates the expression 7.2 × 4.9 and gets an answer of 35.28. Is this a reasonable answer? Explain why.
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Yes that is correct
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What is four over nine equal A over 45
QveST [7]
Answer: A = 20


How to Solve:

Just by looking at this problem I can tell that the denominators (9 an 45) are factors of 9. So the second equation is multiplied by 5 from the first equation.

4/9 x 5

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— -—
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So A would be 20.


Another way to solve this would be by multiplying the 1st equations numerator with the second equations denominator:

4 x 45 = 180

Then divide 180 with the 1st equation’s denominator.

180 / 9 = 20

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