7th Grade Round 1 Quiz Bowl 2022

Which of the following is not a possible cross-section of a square pyramid?

• square

• rectangle

• triangle

• trapezoid

The number line shows the value of x.

Which expression does not have a value of 0

?

• $x-4$

• $-x+4$

• $x+4$

• $4-x$

Cindy polled some of her classmates regarding their preference for cats or dogs. Here are the results:

dogs, cats, dogs, dogs, dogs, cats, cats, dogs, dogs.

If she continues to poll her classmates, which of the following will be true?

• The next person will prefer dogs since most students have preferred dogs.

• The next person will prefer cats since most prefer dogs, and it needs to be even.

• The next person will prefer cats because it is following the pattern.

• The preference of dogs or cats is not able to be determined based on previous responses.

The voltage (V) across a circuit element varies directly with the current (I). When the voltage is 12V, the current is 6A. What is the value of the current when the voltage is 14V?

• $.67A$

• $7A$

• $28A$

• $72A$

What is the value of the expression  $−2÷4×4−7$  

?

•  $-9$  

•  $-7\frac{1}{8}$  

•  $1\frac{1}{2}$  

•  $\frac{1}{6}$  

Which ratio is not equivalent to 16:20?

• 4:5

• 32:40

• 12:15

• 20:24

What is the measure of c?

• $90\degree$

• $38\degree$

• $52\degree$

• $42\degree$

It takes Carly  $\frac{1}{5}$  of an hour to walk a mile. Four of Carly's friends time themselves on their own walks of different lengths.
Davy: walked  $\frac{1}{2}$  of a mile in  $\frac{2}{5}$  of an hour 

Jean: walked  $\frac{1}{2}$  of a mile in  $\frac{1}{10}$  of an hour 

Katie: walked   $\frac{1}{5}$  of a mile in  $\frac{1}{2}$ of an hour 

Marcus: walked  $\frac{1}{3}$ of a mile in  $\frac{3}{5}$  of an hour
Which friend is walking at the same rate as Carly?

• Davy

• Jean

• Katie

• Marcus

Which is not equivalent to $7-4x=-5$  ?

•  $-4x+7=-5$  

•  $x=-3$  

•  $-12=-4x$  

•  $3=x$  

Josiah made 2 cakes of the same size for a party: 1 chocolate and 1 strawberry. At the end of the day, $\frac{1}{4}$ of the chocolate cake was left over. There was  $\frac{3}{8}$  of the strawberry cake left over. Josiah divided the remaining chocolate cake into 3 equal slices and the remaining strawberry cake into 9 equal slices.

Which statement correctly compares the sizes of the remaining slices?

• The remaining chocolate slices are the same size as the remaining strawberry slices.

• The remaining chocolate slices are twice the size of the remaining strawberry slices.

• The remaining chocolate slices are half the size of the remaining strawberry slices.

• The remaining chocolate slices are one-third the size of the remaining strawberry slices.