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If 15 basket ball cards are $9.00 haw much money would 30 basket ball cads be?

1 Answer

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Final answer:

To find out how much money 30 basketball cards would cost, set up a proportion using the given information and solve for x. Therefore, 30 basketball cards would cost $18.00.

Step-by-step explanation:

To find out how much money 30 basketball cards would cost, we can set up a proportion using the given information. We know that 15 basketball cards cost $9.00, so we can set up the proportion:

15 cards / $9.00 = 30 cards / x

To solve for x, we can use cross multiplication. Cross multiplying gives us:

15x = 30 * $9.00

Next, we can divide both sides of the equation by 15 to isolate x:

x = (30 * $9.00) / 15

Simplifying the expression gives us: x = $18.00

Therefore, 30 basketball cards would cost $18.00.

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