Math In Focus Course 2 Chapter 2 Test Review

Front

What is the cost of plates if they are sold in packs of 10 at 1.4p dollars per pack for 50 students?

Back

10p

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Front

If gold is priced at (0.5x + 100) dollars per ounce in 2001, what is its price in 2016 after it tripled in 2008 and then doubled in 2011?

Back

2x + 400

Tags

CCSS.8.EE.C.7B

Front

What is the formula for the perimeter of a rectangle with width 8x yards and length 5 more than the width?

Back

32x + 10

Tags

CCSS.8.EE.C.7B

Front

If Alex is x years old and Addison is y years younger, what is their combined age in 5 years?

Back

2x - y + 10

Tags

CCSS.6.EE.B.6

Front

How do you factor the expression 18a - 54c in simplest form?

Back

18(a - 3c)

Tags

CCSS.7.EE.A.1

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width) or P = 2L + 2W

Tags

CCSS.4.MD.A.3

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms or factoring.

Tags

CCSS.7.EE.A.1

Front

What is a variable in mathematics?

Back

A symbol used to represent an unknown value, often denoted by letters like x or y.

Tags

CCSS.6.EE.A.2B

Front

What is the distributive property?

Back

a(b + c) = ab + ac, meaning you multiply a term by each term inside the parentheses.

Tags

CCSS.6.EE.A.3

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.