1.
VideoMart Electronics sold 150 DVD players and VCRs during their last weekend sale for a total of $21,050. The DVD players sold for $175 and the VCRs sold for $95. How many VCRs were sold?
A.
85
B.
75
C.
65
D.
95
Hint
2.
Find the value of
r
in the following equation.
2 + 6
r
= 3
r
- 1
A.
-1
B.
6
C.
D.
2
Hint
3.
Find a solution to the equation using backtracking.
A.
x
= 9
B.
x
= 11
C.
x
= 8
D.
x
= 10
Hint
4.
In a bag of 53 cherry and watermelon-flavored candies, there are 19 more watermelon than cherry candies. How many cherry candies are there?
A.
34
B.
17
C.
19
D.
36
Hint
5.
Find how many blocks are in each bag to balance the scale.
A.
B.
C.
D.
Hint
6.
Solve this equation by imagining a balance puzzle.6
n
+ 14 = 10
n
+ 6
A.
n
= 3
B.
n
= 4
C.
n
= 2
D.
n
= 1
Hint
7.
Which equation has a solution of
x
= 7?
A.
–7 + 8
x
= –11
x
+ 14
B.
7 – 11
x
= –8
x
– 14
C.
11
x
– 7= 14 – 8
x
D.
11 + 7
x
= –14
x
– 8
Hint
8.
Simplify 20
y
– (6
y
– 2
z
)
A.
14
y
– 2
z
B.
14
y
+ 2
z
C.
–14
y
+ 2
z
D.
–14
y
– 2
z
Hint
9.
Using
n
, find the expression for this
Think of a Number
trick.
Think of a number.
Multiply by 2.
Add 4.
Divide by 2.
Add 6.
Subtract the number you started with.
A.
B.
C.
D.
Hint
10.
Simplify the equation.
y
= –2(
x
– 7) – (9 + 5x)
A.
y
= –16
x
+ 3
B.
y
= 3
x
– 16
C.
y
= 7
x
– 5
D.
y
= –7
x
+ 5
Hint