Writing Expressions, Equations and Inequalities

half of a number, c

• c - 2

• ½ ÷ c

•  ½c

• c + ½

Which expression means:
15 miles less than Debbie

• d + 15

• d - 15

• 15 - d

• 15 + d

Cheryl gets paid $8 per hour at her job at the record store.  She made a total of $96 last week.  Write a multiplication equation to show how many hours she worked last week.

• 96h = 8

• h/96 = 8

• 8h = 96

• h/8 = 96

Last weekend, Janet collected red leaves for an art project. On Saturday, Janet collected 38 red leaves. On Sunday, she collected some more red leaves in the park. Now Janet has 56 red leaves. Which equation, when solved, will show how many red leaves Janet collected on Sunday?

• 38r = 56

• 38 - r = 56

• 56(38) = r

• 38 + r = 56

Which situation can be represented by the inequality
15 + 6x ≤ 100?

• Lazer Zone charges $15 plus $6 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?

• Lazer Zone charges $6 plus $15 per person. If Andrea has a maximum of $100 to spend, how many people can Andrea invite to play laser tag?

• Lazer Zone charges $15 plus $6 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?

• Lazer Zone charges $6 plus $15 per person. If Andrea has a minimum of $100 to spend, how many people can Andrea invite to play laser tag?

Tags

CCSS.7.EE.B.4B

Write an inequality for Graph 4.

• -2 < x < 5

• x < -2 or x > 5

• x ≥ -2 OR x < 5

• -2 ≤ x ≤ 5

Write the inequality:

Mathematical Equivalence

ON

DeAndre has a maximum of $15 to spend at the movie theater. His movie ticket cost $6.50. How much money can he spend on snacks? ​ (a)  

• x + 6.50 ≤ 15

• x - 6.50 ≤ 15

• x + 6.50 ≥ 15

• x + 6.50 = 15

Maria had $330 in her savings account when Jose opened a savings account with zero dollars. Maria deposited $30 into her account each week for x weeks. Jose deposited $50 into his account each week for x weeks. The accounts did not earn interest. Write an inequality that represents this situation.

Mathematical Equivalence

ON

You got $65 to spend at the Rough Riders baseball game. You paid $8.25 per hot dog plus $15 for a souvenir cup. Which inequality sentence matches this scenario?