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fredd [130]
3 years ago
14

Será a equação x² + 3x = x + 6 + x² do 2º grau?

Mathematics
1 answer:
goblinko [34]3 years ago
3 0

x² + 3x = x + 6 + x²

<u>-x²        </u>    <u>          -x²  </u>

      3x = x + 6

  <u>    -x </u>   <u>-x      </u>

     2x =      6

     \frac{2x}{2} =      \frac{6}{2}

      x =    3

Answer: x = 3

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A farmstand sells bags containing 3 2/3 lb of apples. Elena bought 25 2/3 lb of apples. How many bags of apples did Elena buy?
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answer as a mixed number if possible. A bowl of cereal had 3 3/6 grams of sugar in it. If Victor ate 2 bowl8a week, how many gra
GrogVix [38]

<em>7 grams of sugar</em>

<h2>Explanation:</h2>

________________________________________

I'll assume your answer is as follows:

<em>A bowl of cereal had 3 3/6 grams of sugar in it. If Victor ate 2 bowl a week, how many grams of sugar would he have eaten?</em>

________________________________________

If so, then we know that:

  • A bowl of cereal had 3 3/6 grams of sugar in it.
  • Victor ate 2 bowl a week

In other words, the total of sugar he ate can be calculated as:

3\frac{3}{6}\times2 \\ \\ Converting \ mixed \ fraction \ into \ improper \ fraction: \\ \\ =(3+\frac{3}{6})\times2 \\ \\ =(\frac{3(6)+3}{6})\times 2 \\ \\ =(\frac{21}{6})\times 2 \\ \\ =(\frac{7}{2})\times 2 \\ \\ =7

So <em>he'd have eaten 7 grams of sugar</em>

<h2>Learn more:</h2>

Mixed numbers: brainly.com/question/383603

#LearnWithBrainly

7 0
3 years ago
Help don’t know what to do
nydimaria [60]

Answer:

=6

Step-by-step explanation:

find the LCM of the two denominators 3 and 6 which is 6

equate in that such that 6÷3*2x=4x

6÷6×x=x

add the two=5x

5x/6=5

multiply by six both sides

5x=30

divide both sides by 5 to get x

x=6

hope it helps

4 0
3 years ago
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