Writing Expressions in Multiple Ways (7.EE.2)

Front

What is the expression for finding the sale price after a 12% discount on an item priced at n dollars?

Back

n - 0.12n

Front

If a square has sides of length y cm, what is the expression for the new length of the sides after reducing each side by 6%?

Back

0.94y

Front

How do you express the discounted price of an item costing p dollars with a 10% coupon?

Back

p - 0.1p

Front

What expression represents Joe's new hourly rate after receiving a 5% raise on his x dollar hourly wage?

Back

1.05x

Front

What is the expression for the discounted price of an item x after an 11% discount?

Back

x - 0.11x

Front

Define 'expression' in the context of mathematics.

Back

A combination of numbers, variables, and operators that represents a value.

Front

What does it mean to 'discount' an item?

Back

To reduce the price of an item by a certain percentage.

Front

How do you calculate a percentage decrease?

Back

Multiply the original amount by the percentage decrease (as a decimal) and subtract from the original amount.

Front

What is the formula for calculating the new price after a percentage increase?

Back

Original price × (1 + percentage increase) as a decimal.

Front

What is the formula for calculating the new price after a percentage decrease?

Back

Original price × (1 - percentage decrease) as a decimal.