Inequalities and Equations

2(4x-1) = 39.6

A copy center charges a design set-up fee of $25 per project plus $0.79 per color copy.  Shayla spent $198.80 having her project completed.   When x represents the number of color copies, which equation can be used to represent this situation?

• Add 8 to both sides of the equation, and then multiply both sides of the equation by 5.

• Subtract 8 from both sides of the equation, and then multiply both sides of the equation by 5.

• Add 8 to both sides of the equation, and then divide both sides of the equation by 5.

• Subtract 8 from both sides of the equation, and then divide both sides of the equation by 5.

Orlianys bought 14 pencils that each cost the same amount and a sharpener that cost $8.50. The items she bought cost a total of $20.54 before tax was added. Which equation would help you find p, the cost of each pencil? (BEFORE you click on your answer, write the equation in your notebook because you will need it for the next problem.)

• 14p + 8.50 = 20.54

• 8.50p + 14 = 20.54

• 20.54p + 8.50 = 14

Select the methods that can be used to find the value of n.

Your middle school is having an international dessert tasting. Admission into the dessert tasting is $5, and each dessert you purchase costs $0.30.

 Part A:     Which inequality represents the possible number of desserts, d , that can be purchased with $8 ? (BEFORE you click on your answer, copy the inequality in your notebook because you will need to use it for the next question.)

Solve the inequality you chose from the previous problem and then choose the one answer that best explains the amount of desserts you can purchase.

• You can purchase at least 10 desserts.

• You can purchase at most 5 desserts.

• You can purchase at most 10 desserts.

• You can purchase exactly 5 desserts.

• You can purchase exactly 10 desserts.

Jahmeer went to a carnival with $ 18.50 to spend. He paid an entrance fee of $3.50 and paid $1.25 for each ride. Create an inequality that could be used to find r, the greatest number of rides that Jahmeer could go on.

Desi wants to organize a party and decides to save money for it. She calculates that she needs to save at least $350 in 6 weeks. She already has $80. Part A: Which of the following inequalities could Desi use to find x, the least amount of money she should save every week for her party? (BEFORE you click on your answer, copy the inequality in your notebook so you can solve the next problem.)