A biologist recorded the change from average water levels in a local pond over three weeks.

A 3-column table with 1 row titled Weekly water levels in centimeters. Column 1 is labeled Week 1 with entry 1.4. Column 2 is labeled Week 2 with entry 1 and one-half. Column 3 is labeled Week 3 with entry negative 2.1. A number line going from negative 2.5 to positive 2.5.

Graph and compare the numbers using the correct inequality symbol.

Week 1
Week 2

1 answer

To compare the weekly water levels in the pond using inequality symbols, we first need to convert the entries into a consistent format.

Here's the information provided:

  • Week 1: 1.4 cm
  • Week 2: 1.5 cm (one and one-half is equal to 1.5)
  • Week 3: -2.1 cm (not needed for this comparison but is part of the context)

Now, let's compare Week 1 and Week 2:

  • Week 1: 1.4
  • Week 2: 1.5

Since 1.4 is less than 1.5, we can express this relationship using an inequality symbol:

1.4 < 1.5

In terms of the context provided, we write:

  • Week 1 < Week 2

So the correct inequality symbol to compare the water levels between Week 1 and Week 2 is "<".