An annual pass covering entrance fees to more than 2000 national parks cost $80. If the total income from the annual passes is $12,800 in one month. Write the equation and solve it.

For my equation I put
12800p=80

If you want to know how many people bought this pass, your equation would be

80p = 12,800

Do you see why your equation can't be right? What is the answer when you divide 80 by 12,800?

160

Thanks, I got 160

Yes. 160 people bought the pass in this month.

To solve this problem, let's use the equation:

12800p = 80

Here, "p" represents the number of annual passes sold in one month.

To solve for "p," we need to isolate it on one side of the equation. To do that, we divide both sides of the equation by 80:

12800p / 80 = 80 / 80

This simplifies to:

160p = 1

Finally, we solve for "p" by dividing both sides of the equation by 160:

160p / 160 = 1 / 160

Simplifying further gives us the solution:

p = 1/160

Therefore, in one month, approximately 1/160 of an annual pass was sold, which means about 0.00625 (or 0.625%) of an annual pass was sold.