a frog sat on a number line, it was on the number 18. it made two equal hops and anded at 0. where did it land first?

To determine where the frog landed first, let's break down the information given and work through the problem step by step.

1. The frog started at number 18 on the number line.
2. It made two equal hops and ended up at 0.

Let's find out the size of each hop the frog made. To do this, we can subtract the starting number (18) from the ending number (0). So, 0 - 18 = -18.

Since the frog made two equal hops, we need to divide the total distance (-18) by the number of hops (2). So, -18 ÷ 2 = -9.

This means that the frog hopped -9 units (or spaces) with each hop.

Now, let's calculate where the frog landed after its first hop. It originally started at 18 and hopped -9 units. To calculate its new position, we subtract the distance of one hop (-9) from the starting position (18). Thus, 18 - 9 = 9.

So, the frog landed at 9 after its first hop.

Therefore, the frog first landed at number 9 on the number line.