Grade 7 Final Review Flashcard

Front

Which is the better buy? 5 burgers for $49.50 or 7 burgers for $56.80?

Back

7 burgers is the better buy.

Front

What is the formula to calculate interest?

Back

The formula is I = p * r * t, where I is interest, p is principal, r is rate, and t is time.

Front

Calculate the interest on a $3600 principal investment at a 2.5% interest rate for 3 years.

Back

The interest is $270.

Front

Back

The result is -48.

Front

Back

Front

Back

The decimal is 0.0625.

Front

What does 'principal' mean in finance?

Back

Principal is the initial amount of money invested or loaned.

Front

What is the rate in the interest formula?

Back

The rate is the percentage at which interest is calculated on the principal.

Front

What does 'evaluate' mean in mathematics?

Back

To evaluate means to calculate the value of an expression.

Front

What is the purpose of solving equations?

Back

The purpose is to find the value of the variable that makes the equation true.