Question

The cost of 6 sailor moon comic books is equal to the cost of a Nirvana vinyl plus 3 comic books. The vinyl costs $15. How much is one comic book?

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Answer 1

5$.

Explanation:

Let's denote the cost of one Sailor Moon comic book as x .

The cost of 6 Sailor Moon comic books is 6x.

According to the given information, the cost of a Nirvana vinyl plus 3 comic books is equal to the cost of 6 Sailor Moon comic books.

So, 15 + 3x = 6x , as the vinyl costs $15.

Now, let's solve for x :

Subtract 3x from both sides: 15 = 3x

Divide by 3: x = 5

Therefore, the cost of one Sailor Moon comic book is $5.

Answer 2

one comic book costs $5

Explanation:

let cost of comic book = $x

let cost of vinyl = $y

according to the question:

6x = y + 3x

y = 6x - 3x

y = 3x (1)

y = $15 (2)

substituting the value of y from equation (2) into equation (1)

15 = 3x

x = 15/3 = 5

thus, cost of one comic book = $5