Illustrative Math Grade 7 Unit 6 Review

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 temperature drop over time with an inequality?

Back

You can represent it as: Initial Temperature - Rate of Change * Time > Threshold Temperature.

Front

Write the inequality for the temperature dropping from 9 degrees Celsius at a rate of 2 degrees Celsius per hour until it is colder than -4 degrees Celsius.

Back

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Back

It represents the number of hours past midnight when the temperature is colder than -4 degrees Celsius.

Front

What is the formula to calculate the remaining fuel in a car after a certain number of days?

Back

Remaining Fuel = Initial Fuel - (Daily Usage * Number of Days).

Front

Write the inequality for Aiden's car fuel situation where the warning light comes on at 1.7 gallons or less.

Back

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Back

It indicates the number of days Aiden's family can drive without the warning light coming on.

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Back

Front

What does it mean to factor an expression?

Back

Factoring an expression means to break it down into simpler components (factors) that, when multiplied together, give the original expression.

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