6th Grade Review Test

Front

What is the formula to find the total time needed to complete a task if a percentage of it is completed in a certain time?

Back

If x% of a task takes t minutes, then the total time T can be calculated as T = (t / x) * 100.

Front

If there are 4 trucks for every 5 cars, how can you express the relationship between trucks (T) and cars (C)?

Back

The relationship can be expressed as T/C = 4/5 or 5T = 4C.

Front

What is a statistical question?

Back

A statistical question anticipates variability in the data and can be answered by collecting data. For example, 'What are the ages of all your cousins?' is a statistical question.

Front

How do you represent an inequality for a distance less than a certain value?

Back

Front

Are the expressions 14d + 21 and 7(2d + 3) equivalent?

Back

Yes, they are equivalent. You can simplify 7(2d + 3) to get 14d + 21.

Front

What is the first step to solve a problem involving percentages?

Back

Convert the percentage to a decimal by dividing by 100, then use it to find the total or part of the whole.

Front

How can you find the total number of items if you know the ratio of two types of items?

Back

If the ratio of trucks to cars is 4:5, you can set up a proportion to find the total number of items based on the known quantities.

Front

What does it mean for two expressions to be equivalent?

Back

Two expressions are equivalent if they have the same value for all values of their variables.

Front

What is the difference between a statistical question and a non-statistical question?

Back

A statistical question expects variability in the answers, while a non-statistical question has a single answer.

Front

How do you convert a word problem into a mathematical inequality?

Back

Identify the key terms in the problem, determine the variable, and express the relationship using inequality symbols.