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Bumek [7]
4 years ago
15

Who can help me ? please​

Mathematics
2 answers:
yarga [219]4 years ago
8 0

Answer:

Step-by-step explanation:

\frac{2x3}{3x3} \\

multiplying by three because you want the denominator same as the other.

  \frac{6}{9}

+ \frac{1}{9}

Add the numerators and keep the denominator the same - the denominator never gets added by the way. You only multiply them to get the denominators to equal

\frac{7}{9}

Masja [62]4 years ago
4 0

Answer:

\dfrac{7}{9}

Step-by-step explanation:

\dfrac{2}{3}=\dfrac{2\cdot 3}{3\cdot 3}=\dfrac{6}{9} \\\\\\\dfrac{6}{9}+\dfrac{1}{9}=\dfrac{7}{9}

Hope this helps!

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One number is eight less than three times another number. If the sum of the numbers is 20, find the numbers.
mamaluj [8]

Answer:

7 & 13

Step-by-step explanation:

Let the first number be x

2nd number = 8 less than 3 times the other

2nd number = 3x - 8

Their sum = 20

X + 3x - 8 = 20

4x -8 = 20

Collect like terms

4x = 20+8

4x = 28

Divide both sides by 4

4x/4 = 28/4

X = 7

First number = 7

2nd number = 3x - 8

= 3(7) - 8

= 21 -8

= 13.

Therefore the numbers are 7 and 13

Pls mark as brainliest

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Answer:

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