Final answer:
Tyrone purchased 9 booster packs and 1 premade deck, which included a total of 119 cards. For his birthday, he received 9 booster packs and 2 premade decks, which included a total of 148 cards. There are 10 cards in every booster pack and 29 cards in every premade deck.
Step-by-step explanation:
Let's assume that the number of cards in a booster pack is 'x' and the number of cards in a premade deck is 'y'.
According to the given information:
Tyrone purchased 9 booster packs + 1 premade deck = 119 cards
This can be represented as the equation: 9x + y = 119
On his birthday, Tyrone received 9 booster packs + 2 premade decks = 148 cards
This can be represented as the equation: 9x + 2y = 148
Now we have a system of equations:
9x + y = 119
9x + 2y = 148
To solve this system, we can multiply the first equation by 2 and subtract the second equation, which will eliminate the 'x' variable:
(2 * (9x + y)) - (9x + 2y) = (2 * 119) - 148
18x + 2y - 9x - 2y = 238 - 148
9x = 90
x = 10
Substituting the value of 'x' into the first equation, we can solve for 'y':
9(10) + y = 119
90 + y = 119
y = 29
Therefore, there are 10 cards in every booster pack and 29 cards in every premade deck.