Writing Equations and Inequalities for Intervention

• 9x - 16 < 1.5x + 42

• 9x - 16 > 1.5x + 42

• 10.5x < 26

• 10.5x > 26

Tags

CCSS.7.EE.B.4B

• 30x < 330 + 50x

• 50x > 330 + 30x

• 30x > 330 + 50x

• 50x < 330 + 30x

Tags

CCSS.7.EE.B.4B

• 3t + 350 = 2.50t + 225

• 350t + 2.50 = 225t + 3

• 2.50t + 350 = 3t + 225

• 3t + 350 = 2.50 + 225t

Which statement best represents the inequality,

4x – 10 > 6x – 20?

• A. Yesenia spent $6 for each nail polish, plus $20 on a pair of sandals. The next day she spent $4 for each nail polish, plus $10 on a pair of socks. Yesenia spent more money on the first day after buying x nail polishes.

• B. The seed of a plant A is buried 10 centimeters underground and grows at a rate of 4 centimeters per week. The seed of plant B is buried 20 centimeters underground and grows at a rate of 6 centimeters per week. Plant A will be shorter than plant B after x weeks.

• C. A waiter makes $4 in tips for every table he helps and is required to give $10 to the hostess at the end of his shift. A waitress at a different restaurant earns $6 in tips for every table she helps and is required to give the hostess $20 at the end of her shift. The waiter will make more money after x tables are helped.

• D. None of the above.

Tags

CCSS.7.EE.B.4B

Which inequality can be represented by the inequality 20x + 50 < 25x

• Greg has $50 in his savings account. He deposits $20 in the account each week. His sister, Lauren opened an account today and will deposit $25 in the account each week. How many weeks will it take for Greg to have more money saved than Lauren?

• Greg has $50 in his savings account. He deposits $20 in the account each week. His sister, Lauren opened an account today and will put $25 in the account each week. How many weeks will it take for Lauren to have more money saved than Greg?

• Greg saves $20 each week to put in his savings account at the bank. His sister, Lauren has saved $50 and will save $25 each week. How many weeks will it take for Greg to have more money than Lauren?

• Greg has saved $50 and plans to put $25 each week in his savings account at the bank. His sister, Lauren has also saved $50 but will put $20 in her bank account each week.

Tags

CCSS.7.EE.B.4B

WRITE AN EQUATION TO REPRESENT THE SITUATION

Celebrity A has 400 followers on social media and is gaining 75 followers each day. Celebrity B has 1,000 followers on social media, but is losing 25 followers a day.

• 400 - 75x = 1,000 + 25x

• 400 + 75x = 1,000 – 25x

• 400x - 75 = 1,000x + 25

• 400x + 75 = 1,000x – 25

WRITE AN EQUATION TO REPRESENT THE SITUATION

Peter and his friends are going to play putt-putt. At one location, they can pay $2.00 for rentals plus $7.50 per game. At another location, it would cost $8.00 for rentals plus $6.00 per game.

• 2 + 7.50x = 8 + 6x

• 2 - 7.50x = 8 - 6x

• 2x + 7.50 = 8x + 6

• 2x - 7.50x = 8 x- 6

SOLVE THE EQUATION

Shelby has $155 in savings, and her boyfriend George has $230. Shelby is saving $10 each week, and George is spending $15 each week. After how many weeks will their savings accounts have the same amount of money in them?

• 8 weeks

• 7 weeks

• 4 weeks

• 3 weeks

Tags

CCSS.8.EE.C.7B