Percent Proportion Flashcard

Front

What is the formula to find the percentage of a number?

Back

Percentage = (Part / Whole) x 100

Front

If 18 is 40% of a number, how do you find that number?

Back

Divide 18 by 0.40 to find the whole number.

Front

What is 20% of 45?

Back

9

Front

What does the 'I' in the simple interest formula I=Prt stand for?

Back

Interest

Front

In the formula I=Prt, what does 't' represent?

Back

Time, in years

Front

How do you calculate a 20% tip on a $28 meal?

Back

Multiply $28 by 0.20 to find the tip, then add it to the meal cost.

Front

What is the total cost if a meal is $28 and a 20% tip is added?

Back

$33.60

Front

What is the relationship between percentage, part, and whole?

Back

Part = (Percentage / 100) x Whole

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.

Front

What is the simple interest formula?

Back

I = Prt, where I is interest, P is principal, r is rate, and t is time.