How to Use a RATIO | 6.RP.A.3

The video tutorial explains how to use the ratio of mass to volume to find an unknown volume when given the mass. It starts with a problem statement involving a metal with a known mass-to-volume ratio and a sample with a given mass. The tutorial guides viewers through the process of finding the unknown volume by maintaining proportional ratios, ultimately solving the problem and providing the correct answer. The lesson concludes with a summary of the method used.

What is the initial ratio of mass to volume given for the metal in the problem?

• 81 grams to 30 cubic centimeters

• 30 grams to 10 cubic centimeters

• 27 grams to 10 cubic centimeters

• 10 grams to 27 cubic centimeters

If the mass of the metal sample is 81 grams, what is the unknown volume in cubic centimeters?

• 10 cubic centimeters

• 27 cubic centimeters

• 30 cubic centimeters

• 81 cubic centimeters

How do you determine the equivalent ratio to find the unknown volume?

• By dividing the mass by the volume

• By multiplying both the mass and volume by the same factor

• By multiplying the mass by a factor

• By adding the mass and volume

What mathematical operation is used to find the relationship between 27 grams and 81 grams?

• Subtraction

• Multiplication

• Division

• Addition

What is the final volume of the metal sample with a mass of 81 grams?

• 10 cubic centimeters

• 81 cubic centimeters

• 27 cubic centimeters

• 30 cubic centimeters