Mid Year Review

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you calculate a percentage increase?

Back

To calculate a percentage increase, subtract the original number from the new number, divide the result by the original number, and then multiply by 100.

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What does it mean for a relationship to be proportional?

Back

A relationship is proportional if two quantities maintain a constant ratio or rate.

Front

What is the formula for finding the total after a percentage increase?

Back

Total = Original Amount + (Original Amount × Percentage Increase) / 100.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.

Front

What is the total length of two pieces of wire if one is 36 inches and the other is 24 inches?

Back

The total length is 60 inches.

Front

What does it mean for a graph to go through the origin?

Back

A graph goes through the origin if it intersects the point (0,0), indicating that when one variable is zero, the other is also zero.

Front

How do you find the length of each piece of wire cut in a specific ratio?

Back

To find the lengths, divide the total length by the sum of the ratio parts, then multiply by each part of the ratio.