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

Last updated 9 months ago
11 questions
1

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

x + 3 > 70

1

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

x + 3 < 70

1

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

-5x < 2

1

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

5x < 2

1

Here is an inequality: -x > 18.

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

1

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.

1

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

Draggable itemCorresponding Item
Mai spent $2 and has less than $20.
x + 2 < 20
If Priya had half the money she has, she would have less than $20.
x - 2 < 20
If Tyler had twice the amount of money he has, he would have less than $20.
2x < 20
Han got $2 from Clare, but still has less than $20.
\frac{1}{2}x < 20
1

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?

1

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)

1

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)

1

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

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