Unit 6 Review

Jada makes sparkling juice by mixing 2 cups of sparkling water with every 3 cups of apple juice.

Let s represent the number of cups of sparkling water and j represent the number of cups of apple juice. Write an equation that shows how j and s are related.

• j = 2/3 s

• j = 3/2 s

• j = 5/2 s

• j = 4/3 s

Jada makes sparkling juice by mixing 2 cups of sparkling water with every 3 cups of apple juice.

How much apple juice does Jada need if she uses 6 cups of sparkling water?

• 6 cups

• 9 cups

• 12 cups

• 3 cups

Write an expression equivalent to m+m+m+m that is a sum of two terms.

• 2m + 2m

• 3m + m

• m + m + m + m

• 4m

Write an expression equivalent to m+m+m+m that is a product of a coefficient and a variable.

• 3m

• 4m

• 5m

• 2m

What is a coefficient?

• A number placed beside and multiplied by a variable in an algebraic expression.

• A constant value that does not change in an equation.

• A term that represents the degree of a polynomial.

• A symbol used to denote a variable in mathematics.

Which expression is equivalent to 20c - 8d?

• 4(5c - 5d)

• 2(10c - 4d)

• 5(4c - 2d)

• 10(2c - d)

Which expression is equal to 6⁴?

• 6 x 6 x 6 x 6

• 6 + 6 + 6 + 6

• 6 x 4

• 6² x 6²

What is a variable?

• A letter in algebraic expressions representing an unknown value.

• A fixed number that does not change.

• A type of equation used in calculus.

• A symbol used to denote a constant value.

What is a term?

• A number, variable, or the product of a number and one or more variables, separated by addition or subtraction signs in an expression or equation.

• A constant value that does not change in an equation.

• A mathematical operation that combines two or more numbers.

• A symbol used to represent an unknown value in an equation.

Jada makes sparkling juice by mixing 2 cups of sparkling water with every 3 cups of apple juice. How much sparkling water does Jada need if she uses 15 cups of apple juice?

• 5 cups

• 10 cups

• 15 cups

• 20 cups