Percent Retake Flashcard

Front

What is the formula to calculate the total number of problems on a test given the number of correct answers and the percentage score?

Back

Total Problems = Correct Answers / (Percentage Score / 100)

Front

How do you calculate the number of competitors who finished a race given the total number of competitors and the percentage that finished under a certain time?

Back

Number of Competitors = Total Competitors * (Percentage / 100)

Front

What is the formula to find the percent of change in a price?

Back

Percent of Change = ((New Price - Old Price) / Old Price) * 100

Front

How do you determine the number of students participating in a fundraiser given the total number of students and the percentage participating?

Back

Number of Students Participating = Total Students * (Percentage Participating / 100)

Front

What is the definition of percent change?

Back

Percent change is a measure of how much a quantity has increased or decreased relative to its original value, expressed as a percentage.

Front

If a student answered 86 problems correctly and received a grade of 98%, how do you find the total number of problems on the test?

Back

You can rearrange the formula: Total Problems = 86 / (98 / 100) which gives approximately 88 problems.

Front

What is the percent of change if an item originally priced at $360 is now $280?

Back

Percent of Change = ((280 - 360) / 360) * 100 = -22.2% (a decrease).

Front

How do you calculate the percent increase from one value to another?

Back

Percent Increase = ((New Value - Old Value) / Old Value) * 100

Front

What is the total number of students if 60% of 160 students participate in a fundraiser?

Back

Total Students Participating = 160 * (60 / 100) = 96 students.

Front

How do you find the number of books read in 7th grade if a student read 15 books in 6th grade and 21 in 7th grade?

Back

Percent Increase = ((21 - 15) / 15) * 100 = 40% increase.