Practice Exam Answers

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21
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Which statements describe the graph of 2 and 8 ninths is greater than or equal to x on a number line? Choose correct three answers.

A
The graph contains the point 0 .
B
The arrow points to the right.
C
The arrow points to the left.
D
There is an open circle on 2 and 8 ninths .
E
There is a closed circle on 2 and 8 ninths .
22
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Which expression is equivalent to 6 x plus 8 ?

A
2 times open paren 4 x plus 6 close paren
B
2 times open paren 3 x plus 4 close paren
C
2 times open paren 3 x plus 8 close paren
D
2 times open paren 3 x minus 4 close paren
24

Alexandria ate at most two hundred fifty calories more than twice the number of calories her infant sister ate. Alexandria ate eighteen hundred calories. If i represents the number of calories eaten by the infant, which inequality represents the situation?

A
1 comma 800 plus 250 is greater than or equal to 2 i
B
1 comma 800 is less than or equal to 250 plus 2 i
C
1 comma 800 is less than 250 plus 2 i
D
1 comma 800 plus 250 is greater than 2 i
28

Which could be the area of one face of the triangular prism? Choose three correct answers.

A
48 square units
B
144 square units
C
24 square units
D
72 square units
E
96 square units
29

Using the equation w times open paren 1 point 5 plus 1 close paren plus 2 is equal to 17 , the race’s organizer determined the cyclists will need to ride 9 laps before the sprint to the finish. Which explains the error?

A
The solution should be 8 , and the cyclists will need to ride 8 laps before the sprint to the finish.
B
The solution should be 6 , and the cyclists will need to ride 6 laps before the sprint to the finish.
C
The equation should be 2 times open paren 0 point 7 5 w plus 0 point 5 close paren plus 2 is equal to 17 , and the cyclists will need to ride 21 laps before the sprint to the finish.
D
The equation should be 0 point 7 5 w plus 0 point 5 w plus 2 is equal to 17 , and the cyclists will need to ride 12 laps before the sprint to the finish.
33

Which statement is true about their work?

A
Both Adler and Erika solved for k correctly because either the addition property of equality or the subtraction property of equality can be used to solve for k .
B
Only Adler solved for k correctly because the inverse of addition is subtraction.
C
Neither student solved for k correctly because k is equal to 2 and 1 eighth .
D
Only Erika solved for k correctly because the opposite of 1 half is negative 1 half .

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