7th Grade Round 2 Quiz Bowl 2022

A jeweler makes earrings at a proportional rate, as shown in the graph.

Which statement about the point (1, 2)

on the graph is true?

• The jeweler makes one earring each hour.

• The jeweler makes two earrings each hour.

• The jeweler takes one hour to make one earring.

• The jeweler takes two hours to make one earring.

Tags

CCSS.8.EE.B.5

A jeweler makes earrings at a proportional rate, as shown in the graph.

Which statement about the point on the graph is true?

• If the jeweler works one hour, no earrings are made.

• The point (0, 0) represents the age at which the jeweler started making earrings.

• If the jeweler works no hours, no earrings are made.

• The point (0, 0) represents the opening date of the jeweler’s business.

Tags

CCSS.8.EE.B.5

In the expression below, m and n are real numbers. $m\div n$  

Under what condition will the simplification of this expression definitely result in a positive answer?

•  $m<n$  

•  $m<n<0$  

•  $m=-n$  

•  $m>n$  and  $n<0$  

Tags

CCSS.7.NS.A.2B

Which will make the statement true? $a<-.01$  

•  $a=.001$  

•  $a=-1$  

•  $a=-.001$  

•  $a=-\frac{1}{100}$  

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

A pelican can fly at an elevation of 6400 meters. A dolphin can swim at a depth of 500 meters.

What is the difference between the pelican’s elevation and the dolphin's depth?

• 6900

• 5900

• -5900

• -6900

Tags

CCSS.7.NS.A.1C

If A is the center of the circle, which of the following is true?

• Line segment BA is shorter than line segment AE.

• Line segment BAC is a diameter of the circle.

• The area of the circle is $10\pi$ .

• The circumference of the circle is  $10\pi$ .

The price of an ice cream cone is $3.25, but it costs $3.51 with tax. What is the tax rate?

• 26%

• 7%

• 8%

• 7.4%

Tags

CCSS.6.RP.A.3C

Which of the following does not represent a proportional relationship?

• 
• $y=7.5x$

• 
• Cookies are for sale in the school cafeteria for $1.25 each.

Tags

CCSS.7.RP.A.2D

Academy Sports & Outdoors is having an end-of-year sale. Baseball bats that were originally 50% off are now an additional 20% off. If the original price of a baseball bat is $35, what is the sale price?

• $34.30

• $17.50

• $14.00

• $10.50

Tags

CCSS.6.RP.A.3C

Which of the following is not true about the triangles shown?

• The missing angle measure of all three triangles is  $60\degree$ .

• All three triangles are identical.

• Triangles A and C are identical.

• The sum of the length of the unknown sides must be greater than 6.

Tags

CCSS.8.G.A.2