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Sati [7]
3 years ago
6

Which situation CANNOT be represented by this equation? 3x – 5 = 25 Clay has 25 marbles to trade for some of Mark's baseball car

ds. If Clay makes the trade today, Mark will give him a discount of 5 marbles. If each card is worth 3 marbles, how many baseball cards, x, will Clay get? Clay has 25 marbles to trade for some of Mark's baseball cards. If Clay makes the trade today, Mark will give him a discount of 3 marbles. If each card is worth 5 marbles, how many baseball cards, x, will Clay get? Clay has 25 marbles to trade for some of Mark's baseball cards. If Clay makes a trade today, Mark will give him a discount of 5 marbles. If Clay receives 3 baseball cards, how many marbles, x, was each card worth?
Mathematics
2 answers:
Flura [38]3 years ago
4 0
<span>Clay has 25 marbles to trade for some of Mark's baseball cards. If Clay makes the trade today, Mark will give him a discount of 3 marbles. If each card is worth 5 marbles, how many baseball cards, x, will Clay get? 

^^ That is the situation that does NOT represent the equation 
</span><span /><span>
</span>
Sliva [168]3 years ago
3 0

THE ANSWER IS: PLEASE MARK AS BRAINLIST

Clay has 25 marbles to trade for some of Mark's baseball cards.  

If Clay makes the trade today, Mark will give him a discount of 3 marbles.

If each card is worth 5 marbles, how many baseball cards, x, will Clay get?


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ivann1987 [24]

Given :

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  • B = {x : x² + 3x - 4 = 0 }

To find :

  • (A U B ) × (A Π B )

Solution :-

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<u>Solving</u><u> </u><u>the </u><u>Quadratic</u><u> equation</u><u> </u><u>,</u>

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<u>Hence</u><u> </u><u>,</u>

  • A ={0.5, -2}

<u>The </u><u>second</u><u> </u><u>set </u><u>is </u><u>,</u>

  • B ={ x :x² + 3x - 4 = 0 }

<u>Solving</u><u> the</u><u> Quadratic</u><u> equation</u><u> </u><u>,</u>

  • x² + 3x - 4 = 0
  • x² + 4x - x - 4 = 0
  • x( x + 4)-1 ( x +4) = 0
  • (x + 4) ( x -1) = 0
  • x = 1 , -4

<u>Hence</u><u> </u><u>,</u>

  • B ={1,4}

<u>Now </u><u>,</u>

  • A U B = { 0.5 , 1 , 4 , -2}
  • A Π B = {∅ }

Since AΠ B is a null set , hence ,

  • A × B = {∅}
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Answer:

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