STAAR- 7th Grade Math 2016- Problems 22-31

A store manager receives a delivery of 2 boxes of lightbulbs. Each box contains 25 lightbulbs. The store manager tests all the lightbulbs and finds that 2 of them are defective. Based on these results, what can the store manager predict about the next delivery of lightbulbs?

• A delivery of 3 boxes will contain 3 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 4 boxes will contain 2 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 5 boxes will contain 10 more defective lightbulbs than a delivery of 2 boxes.

• A delivery of 6 boxes will contain 3 more defective lightbulbs than a delivery of 2 boxes.

If x = -6, which inequality is true?

• -5 - 3x > 10

• -3 - 5x < -14

• 1 - 2x > 13

• 2 - x < -3

Chloe is 5 feet 4 inches tall. There are 2.54 centimeters in 1 inch. What is Chloe’s height in centimeters?

• 56.54 cm

• 13.72 cm

• 162.56 cm

• 152.40 cm

The diameter of the handle of a softball bat is 1 3/4 inches. What is the length in inches of the

diameters of 8 of these bat handles?

• 6 in.

• 8 3/4 in.

• 9 3/4 in.

• 14 in.

A bag contains:

• 5 re d marbles

• 6 blue marbles

• 3 green marbles

• 4 black marbles

• 2 yellow marbles

A marble will be drawn from the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

• 14

• 65

• 7

• 35

Which equation best represents the relationship between x and y in the graph?

• y= 3x +3

• y= 3x - 1

• y= 1/3x + 3

• y= 1/3 x - 1

Emily created the net worth statement shown.

Based on the information in the table, what is Emily’s net worth?

• $107,550

• $87,025

• $20,525

• $128,075

Set A represents rational numbers. Set B represents integers. Which diagram shows the numbers placed in the correct sets?

• 
• 
• 
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A boat traveled 27 miles in 2 hours. At this rate, how many miles will the boat travel in 1/2 hour?

• 13 1/2 mi

• 6 3/4 mi

• 3 3/8 mi

• 24 1/2 mi

Alina drew a model of a square pyramid. The dimensions of the model are shown in the diagram.

What is the volume of Alina’s model in cubic centimeters?

• 400 cm³

• 1200 cm³

• 600 cm³

• 160 cm³