7th Grade IAR Review #1

Front

What happens to the inequality sign when you multiply or divide by a negative number?

Back

The inequality sign flips.

Front

What is the sum of 1/2 hour and 1/3 hour?

Back

To add 1/2 and 1/3, find a common denominator: 1/2 = 3/6 and 1/3 = 2/6. So, 3/6 + 2/6 = 5/6 hours.

Front

Back

Front

What inequality represents the minimum hours Joan needs to babysit to buy a calculator costing $100 if she earns $5 per hour and has $10 already?

Back

Front

How do you calculate speed in miles per hour?

Back

Speed = Distance / Time.

Front

If Daniel walked 2/5 mile in 1/4 hour, how do you find his speed?

Back

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions using symbols like <, >, ≤, or ≥.

Front

What does the symbol '≥' mean?

Back

It means 'greater than or equal to'.

Front

What is the first step in solving an inequality?

Back

Isolate the variable on one side of the inequality.

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 or less than another.