Question

The next wave knocked off the boat,

a gold coin, which sank to −7
4
feet below the surface.

a bronze coin, at −1
4
foot.

a silver coin, which landed on the diving raft at 3
2
feet.

a copper coin, at −11
4
feet.

Locate the treasures on the number line. Which one is highest?

Answer 1

To locate the treasures on a number line, we need to convert each measurement into decimal form for easier comparison.

1. **Gold Coin:**
\(-7 \frac{4}{10} = -7.4\)

2. **Bronze Coin:**
\(-1 \frac{4}{10} = -1.4\)

3. **Silver Coin:**
\(3 \frac{2}{10} = 3.2\)

4. **Copper Coin:**
\(-11 \frac{4}{10} = -11.4\)

Now we have the following decimal values:

- Gold Coin: -7.4 feet
- Bronze Coin: -1.4 feet
- Silver Coin: 3.2 feet
- Copper Coin: -11.4 feet

Next, we can locate the coins on a number line:

- Copper Coin is at -11.4
- Gold Coin is at -7.4
- Bronze Coin is at -1.4
- Silver Coin is at 3.2

### Highest Treasure
The highest treasure is the one with the greatest value. In this case, the **Silver Coin** at 3.2 feet is the highest treasure.