UNIT 4 TEST REVIEW GRADE 7

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

What does a 10% discount mean?

Back

A 10% discount means that the price of an item is reduced by 10% of its original price.

Front

How do you calculate 10% of a number?

Back

To calculate 10% of a number, multiply the number by 0.10.

Front

What is the equation for a 10% discount?

Back

The equation is y = 0.9x, where y is the price after discount and x is the original price.

Front

How do you find the total amount after a discount?

Back

Subtract the discount amount from the original price.

Front

What is percent change?

Back

Percent change is a way to express how much a quantity has increased or decreased relative to its original amount.

Front

How do you calculate percent change?

Back

Percent change = (New Value - Original Value) / Original Value x 100%.

Front

What is the result of adding x + 0.45x?

Back

The result is 1.45x, which represents an increase of 45%.

Front

If Diego has 75% of $10, how much does he have?

Back

Diego has $7.50.

Front

If Noah has 25% of $30, how much does he have?

Back

Noah has $7.50.