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Open Up - Grade 7 - Mathematics - Unit 6 - Lesson 13

By Formative Library
Last updated about 3 years ago
11 Questions

For each inequality, find two values for x that make the inequality true and two values that make it false.

x + 3 > 70

For each inequality, find two values for x that make the inequality true and two values that make it false.

x + 3 < 70

For each inequality, find two values for x that make the inequality true and two values that make it false.

-5x < 2

For each inequality, find two values for x that make the inequality true and two values that make it false.

5x < 2

Here is an inequality: -x > 18.

List some values for x that would make this inequality true.

Here is an inequality: -x > 18.

How are the solutions to the inequality -3x\geq 18 different from the solutions to -3x > 18? Explain your reasoning.

Match each sentence with the inequality that could represent the situation.

x + 2 < 20
x - 2 < 20
2x < 20
\frac{1}{2}x < 20

Here are the prices for cheese pizza at a certain pizzeria:
You had a coupon that made the price of a large pizza $13.00. For what percent off was the coupon?

Here are the prices for cheese pizza at a certain pizzeria:
Your friend purchased a medium pizza for $10.31 with a 30% off coupon. What is the price of a medium pizza without a coupon?(round to the nearest cent)

Here are the prices for cheese pizza at a certain pizzeria:
Your friend has a 15% off coupon and $10. What is the largest pizza that your friend can afford, and how much money will be left over after the purchase?(round to the nearest cent)

Select all the stories that can be represented by the diagram.

"Source: Open Up Resouces (Download for free at openupresources.org.)"