CC3 Chapter 3 Practice Test

Front

What is a proportion and how is it used in problem-solving?

Back

A proportion is an equation that states that two ratios are equal. It is used to solve problems involving relationships between quantities.

Front

How do you set up a proportion based on a word problem?

Back

Identify the two quantities that are being compared, set them as a ratio, and then create an equation that represents the relationship.

Tags

CCSS.7.RP.A.2C

Front

What is the formula for finding the average of a set of numbers?

Back

The average is found by adding all the numbers together and dividing by the total count of the numbers.

Tags

CCSS.6.SP.B.5C

Front

What does it mean if an equation has infinite solutions?

Back

An equation has infinite solutions when any value for the variable satisfies the equation, indicating that the two sides are equivalent for all values.

Tags

CCSS.8.EE.C.7A

Front

How do you solve a division of fractions problem?

Back

To divide fractions, multiply by the reciprocal of the divisor. For example, to solve 5/6 ÷ 2/3, you multiply 5/6 by 3/2.

Tags

CCSS.6.NS.A.1

Front

What is the significance of the range in a set of grades?

Back

The range is the difference between the highest and lowest values in a set, indicating the spread of the data.

Tags

CCSS.6.SP.A.3

Front

How do you determine the number of days needed to complete a task based on a rate?

Back

To find the number of days needed, set up a proportion based on the rate of work and solve for the unknown.

Tags

CCSS.6.EE.B.7

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How can you check if a proposed solution meets the conditions of a problem?

Back

Substitute the proposed solution back into the original problem to see if it satisfies all given conditions.

Front

What is the process for solving a linear equation?

Back

To solve a linear equation, isolate the variable on one side of the equation using inverse operations.

Tags

CCSS.7.EE.B.4A