Algebraic Concept

John is x years old. His sister is 3 years younger than twice his age. What is an expression for his sister's age?

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.6

A rectangle's length is 3 more than its width. If the width is represented by w, what is an expression for the rectangle's perimeter?

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.6

Sarah has $10 more than twice the amount Tom has. If Tom has x dollars, what is an expression for the total amount they have together?

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.6

A company's profit is given by the expression 200x - 5x², where x is the number of items sold (in hundreds). What is the profit when 15 items are sold?

Mathematical Equivalence

ON

Tags

CCSS.HSF.IF.A.2

Simplify: (4x - 3)(2x + 1)

Mathematical Equivalence

OFF

Tags

CCSS.HSA.APR.A.1

Factor completely: 12x² - 3x

Mathematical Equivalence

OFF

Solve the equation:
x - 5.5 = 10.5

• x = 16

• x = -15

• x = 5

• x = -5

Tags

CCSS.6.EE.B.7

Translate the word equation 'The sum of a number and 5 is 12' into an algebraic equation.

• x - 5 = 12

• 5x = 12

• x + 12 = 5

• x + 5 = 12

Translate the word equation 'The difference between a number and 8 is 20' into an algebraic equation.

• x - 20 = 8

• 8 - x = 20

• x + 8 = 20

• x - 8 = 20

Translate the word equation 'The difference between a number and 10 is 15' into an algebraic equation.

• x - 10 = 15

• 10 - x = 15

• x + 10 = 15

• x/10 = 15