Equivalent Expressions from Situations

Front

What is an equivalent expression?

Back

An equivalent expression is an expression that has the same value as another expression, even though they may look different.

Front

How do you calculate the total cost of multiple items purchased at the same price?

Back

Multiply the price per item by the total number of items purchased.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What does the perimeter of a shape represent?

Back

The perimeter is the total distance around the shape.

Front

How do you simplify the expression 4p + 2(p + 4) + 8?

Back

Combine like terms: 4p + 2p + 8 + 8 = 6p + 16.

Front

What is the value of 2.25 pounds of cereal at $5.79 per pound?

Back

Total cost = 2.25 × 5.79 = $13.06.

Front

What is the expression for the perimeter of a rectangle with length 10x and width 5x?

Back

Perimeter = 2(length + width) = 2(10x + 5x) = 30x.

Front

What does it mean to round to the nearest cent?

Back

Rounding to the nearest cent means adjusting the value to the closest hundredth place.

Front

How do you find the area of a shape with the expression 6x + 18y + 12?

Back

This expression represents the total area, combining different parts of the shape.

Front

What is the simplified form of the expression 6x + 3y + 2?

Back

The expression is already in its simplest form.