Greater than, less than, equal to:

30 mL ___ 30cm cubed

100cm cubed ___ 1 gallon

Please explain.

1 ml = 1 centimeter cubed

1 US gallon = 3 785.41178 centimeter cubed

I'll be glad to check your answers.

30 mL is less than 30 cm cubed

100 cm cubed is less than 1 gallon

One of your answers is right.

How come?

1 ml = 1 centimeter cubed

equal to

Right.

Thank you.

You're welcome.

To compare different units of measurement such as milliliters (mL), cubic centimeters (cm³), and gallons, it's important to understand the conversions between them.

1. Comparison between 30 mL and 30 cm³:
To compare these two volumes, we need to convert the units so that they are in the same measurement system.

We know that 1 cm³ is equivalent to 1 mL. So, 30 cm³ is equal to 30 mL. Therefore, the answer is equal to.

2. Comparison between 100 cm³ and 1 gallon:
Here, we need to convert both the cubic centimeters and the gallon into the same measurement system.

1 gallon is equal to approximately 3785.41 mL. We can convert 3785.41 mL into cm³ by keeping in mind that 1 cm³ is equal to 1 mL. Hence, 3785.41 cm³ is equivalent to 3785.41 mL.

Now we can compare 100 cm³ with 3785.41 cm³. The answer is greater than, as 3785.41 cm³ is larger than 100 cm³.

In conclusion:
- 30 mL is equal to 30 cm³.
- 100 cm³ is less than 1 gallon.