Mathematics Quiz

The graph shows a relationship between two quantities. Which equation best represents the relationship between x and y in the graph?

• y = 1500x + 150

• y = -15x + 100

• y = -100x + 15

• y = 150x + 1500

Tags

CCSS.8.EE.B.5

Delia is a graphic designer who charges an hourly rate. She made the graph to show her total earnings for various numbers of hours worked. What is Delia’s approximate hourly rate?

• $50 per hour

• $40 per hour

• $35 per hour

• $25 per hour

Tags

CCSS.HSF.LE.B.5

Which situation is best represented by this inequality? 3.75x + 60 ≤ 100

• Amy spends $60 on textbooks for school and sells decorative erasers for $3.75 a piece. If Amy needs $100 to buy a train ticket to see her friend, how much more does she need to earn?

• Amy spends $60 on groceries and buys boxes of pencils for school at $3.75 each. If Amy’s budget is $100, how many boxes of pencils can she buy?

• Amy has $60 in her savings account. Each day, she spends $3.75 on a cup of coffee. How much money does she have after 100 days?

• Amy has collected 100 different varieties of rocks. She gives 60 of them to her friend and sells the rest to a museum for $3.75 a piece. How many rocks did she sell?

Tags

CCSS.7.EE.B.4B

Rory has $30 in his bank. He decides to save $6 a week to buy an electric guitar costing at least $150. Write and solve an inequality that shows how many weeks, w, it will take to buy the guitar.

• 6w + 30 ≤ 150; 20 weeks or less

• 6w + 30 ≥ 150; 20 weeks or more

• 6w – 30 ≤ 150; 30 weeks or less

• 6w – 30 ≥ 150; 30 weeks or more

Which situation is best represented by this equation? 8x + 70 = 180

• Sarah saves $180. She spends $8 per week on gas. How long will it take Sarah to spend all of her money?

• Sarah currently has $70 saved. If she saves $8 per week, how long will it take Sarah to have a total of $180 saved?

• Sarah sells T-shirts for $8 per shirt at a local vendor fair. She had to pay a $40 booth fee. How many T-shirts must she sell to make a $180 profit?

• Sarah’s school is transporting 180 students for the field trip. Each bus will hold 70 students and 8 students will ride in a van instead of a bus. How many buses do they need to transport all 180 students for the field trip?

Tags

CCSS.7.EE.B.4A

From the problem below determine the keyword that determines the expression for Get Clean:

The cost to rent a rug cleaner for a day is $25 plus $15 per hour at Rugs Galore. At Get Clean the rug cleaner costs $45 plus $7 per hour. Write an inequality that can be used to show how many hours you need to rent the rug cleaner so that Get Clean’s charges will be less than Rugs Galore’s

charges.

• y = 15x + 25

• y = 25x + 15

• y = 45x + 7

• y = 7x + 45

Tags

CCSS.7.EE.B.4B

Solve

-4x < 24

Mathematical Equivalence

ON

Tags

CCSS.6.EE.B.8

  What is the small value that would satisfy the inequality -3 ≤ x ? (a)  

• -3
• -3.00001
• infinity
• -4.5
• 15
• -444,323,000
• negative infinity