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Ill give 100 points someone please help

Ill give 100 points someone please help-example-1
User Ssoler
by
7.6k points

1 Answer

2 votes

Answer:

  • One booster pack is worth 9 cards and one premade deck is worth 37 cards.

Explanation:

We know that:

  • 9x + 7y = 340 cards
  • 4x + y = 73 cards
  • y = Cost of premade decks (In cards)
  • x = Cost of booster packs (In cards)

Work:

  • 9x + 7y = 340 cards

4x + y = 73 cards

  • 4(9x + 7y = 340 cards)

9(4x + y = 73 cards)

  • 36x + 28y = 340 x 4 cards

36x + 9y = 73 x 9 cards

  • 19y = 1360 - 657
  • 19y = 703
  • y = 703/19 = 37

This means that 1 premade deck is worth 37 cards. Now, let's substitute the value of y into the first equation to find x.

  • 9x + 7y = 340 cards
  • => 9x + 7(37) = 340 cards
  • => 9x + 259 = 340 cards
  • => 9x = 81 cards
  • => x = 9 cards

Hence, one booster pack is worth 9 cards and one premade deck is worth 37 cards.

Hoped this helped.


BrainiacUser1357

User Steve Van Treeck
by
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