24-25 7th Grade Maintenance Sheet 7.1 (units 1 & 2)

Front

What is the result of subtracting the expression (1 + 6r) from (5r + 3)?

Back

The result is -r + 2.

Front

If Rainey’s age is at most 3 more than twice Sunny’s age and Rainey is 35 years old, what inequality represents this situation?

Back

The inequality is 2a + 3 ≤ 35, where a represents Sunny's age.

Front

What expression represents the total cost of staying at a hotel for n nights at $80 per night with a one-time fee of $20?

Back

The expression is 80n + 20.

Front

What is the solution set for the inequality 2n - 7 < 25?

Back

The solution set is n < 16.

Front

What is the result of adding the expression (3 - y) to (7y + 5)?

Back

The result is 6y + 8.

Front

Define an expression in algebra.

Back

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

Front

What is the difference between an equation and an inequality?

Back

An equation states that two expressions are equal, while an inequality shows that one expression is greater than or less than another.

Front

How do you simplify the expression 5r + 3 - (1 + 6r)?

Back

Combine like terms to get -r + 2.

Front

What does it mean for Rainey’s age to be 'at most' a certain value in terms of inequalities?

Back

It means that Rainey’s age can be equal to or less than that value.

Front

What is the significance of the one-time fee in the hotel cost expression 80n + 20?

Back

The one-time fee represents an additional cost that does not depend on the number of nights stayed.