Expressions & Equations Vocabulary

Question 1

A class is buying notebooks that cost 5 each and markers that cost 2 each. If n notebooks and m markers are purchased, which expression gives the total amount spent?

Accepted Answer

5n + 2m

Answer

5m + 2n

Answer

5(n + m)

Answer

5n - 2m

Question 2

Consider the three algebraic statements below: I. 5m2 – 3m + 8 II. 4c + 9 = 2d – 5 III. 7z – 2 > 0 Which option correctly (a) identifies each statement as an expression, an equation, or an inequality, and (b) gives the coefficient of the term that contains the variable with the highest exponent in the expression?

Accepted Answer

I – expression, II – equation, III – inequality; coefficient = 5

Answer

I – inequality, II – equation, III – expression; coefficient = 5

Answer

I – expression, II – equation, III – inequality; coefficient = 7

Answer

I – expression, II – inequality, III – equation; coefficient = 5

Question 3

A rectangle’s width is represented by the variable w. Its length is 3 more than its width. Write an expression that represents the perimeter of the rectangle in terms of w.

Accepted Answer

4w + 6

Answer

2w + 3

Answer

6w + 3

Answer

2w + 6

Try three questions

A class is buying notebooks that cost $5 each and markers that cost $2 each. If n notebooks and m markers are purchased, which expression gives the total amount spent?

A rectangle’s width is represented by the variable w. Its length is 3 more than its width. Write an expression that represents the perimeter of the rectangle in terms of w.

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