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

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, greater than or equal to, or less than or equal to the other.

Front

How do you represent a situation with an inequality?

Back

You identify the quantities involved and express the relationship between them using inequality symbols (>, <, ≥, ≤).

Front

What does the variable 'h' represent in the context of Emma's earnings?

Back

In this context, 'h' represents the minimum number of hours Emma could have worked to earn at least $395.50.

Front

What is the formula for calculating total earnings with hourly pay and tips?

Back

Total earnings = (Hourly rate × Hours worked) + Tips.

Front

How do you find the perimeter of a trapezoid?

Back

The perimeter of a trapezoid is found by adding the lengths of all four sides.

Front

What is the expression for the total cost of staying at a hotel for 'n' nights with a nightly rate and a one-time fee?

Back

Total cost = (Nightly rate × n) + One-time fee.

Front

What does the expression '80n + 20' represent in the context of the Hamied family's hotel stay?

Back

It represents the total cost of staying at the hotel for 'n' nights, where $80 is the nightly rate and $20 is the one-time fee.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

How do you simplify the expression '7y + 5 + (3 - y)'?

Back

Combine like terms: 7y - y + 5 + 3 = 6y + 8.

Front

What does the inequality '7h + 50 ≥ 99' represent?

Back

It represents the situation where the total earnings of a waitress, based on her hourly wage and tips, are at least $99.