ACT SAT Prep Learn how to write the expression for a word problem

The video tutorial discusses a word problem involving three items with different costs. The teacher explains how to break down the problem, identify known and unknown information, and create equations to find the solution. The focus is on understanding the relationships between the items and using variables to represent unknowns. The problem is solved by substituting the given variable and calculating the cost of item A.

Why is it important to understand what the question is asking in a word problem?

• To memorize the problem

• To identify known and unknown elements

• To quickly find the answer

• To avoid reading the problem again

What is the relationship between item A and item B in the problem?

• Item A costs twice as much as item B

• Item A costs four more dollars than item B

• Item A costs the same as item B

• Item A costs less than item B

Which item is used as the variable to create an equation?

• None of the items

• Item C

• Item B

• Item A

If M is the cost of item C, what is the expression for the cost of item B?

• 2M

• M + 4

• M - 4

• M / 2

What is the final expression for the cost of item A in terms of M?

• M + 2

• 2M + 4

• M - 2

• 2M - 4