Question 12
Lamont has purchased 20 trading cards and wants to have at least 50 trading cards. Write and solve an inequality to find the number of tradin cards Lamont needs. Select all of the true statements.
x + 20 > 50
x + 20 <= 50
x > 30
x <= 30
x >= 70
The correct inequality to find the number of trading cards Lamont needs is:
x + 20 >= 50
This can be read as "the number of trading cards Lamont has (x) plus 20 must be greater than or equal to 50."
The true statements that can be selected are:
x + 20 >= 50 (This is the correct inequality)
x > 30 (This comes from subtracting 20 from both sides of the inequality above. It means "the number of additional trading cards Lamont needs is greater than 30.")
x >= 70 (This is incorrect. It is the opposite of what the inequality states, and would mean that Lamont already has more than 70 trading cards.)