Which algebraic expression represents 15 less than the product of 7 and a number
A. 15-7n
B. 7n-15
C. 15(7n)
D. 7(n-15)
B. 7n-15
100
What is the value of 3m^2-mn/2mn^2 when m=-1 and n=-2?
A. -5/8
B. -1/8
C. 1/8
D. 5/8
A. -5/8
100
A scale drawing of a building has the scale 0.5 in.:6 ft. A wall is 30 ft long. How long will the wall be on the drawing?
A. 1.5 in.
B. 2.5 in
C. 6 in
D. 360 in
B. 2.5 in
100
Which of the following is the correct simplification of 7*4^2/8-12
A. -28
B. -17/2
C. -5
D. 2
D. 2
100
Which property is illustrated by 45+19=19+45?
A. Commutative Property of Addition
B. Identity Property of Addition
C. Associative Property of Addition
D. Zero Property of Addition
A. Commutative Property of Addition
200
What is the solution of -6x+15=-3?
A. -3
B. -2
C. 3
D. 6
C. 3
200
Evaluate each expression for x=3 and y=2.
A. -4x+3y
B. x^2-y
-------
4x
A. -6
B. 7/12
200
The scale of a map is 0.25 cm : 15 mi. Determine the distance between two cities that are 6.8 cm apart on the map.
408 miles
200
What is the simplified form of the expression (square root of 225)?
A. -25
B. 15
C. 20
D. does not simplify
B. 15
200
Why is the following true? 2(x + y) = 2x + 2y
The distributive property
300
What is the solution of 4x-6=-6x-4?
A. -3/2
B. -1
C. 1/5
D. 1
C. 1/5
300
If 7x+3=24, what is the value of 5-4x?
A. -23
B. -7
C. 1
D. 17
B. -7
300
Jeremy is putting together a model rocket. The scale is 1 cm : 50 ft. If the height of the actual rocket is 210 feet, how tall is the model?
4.2 centimeters
300
Simplify: (- square root of 169)
-13
300
Use the Distributive Property to rearrange: 4x – 8
4x – 8 = 4(x – 2)
400
What is the solution of 3/5=x/15?
A. 1
B. 6
C. 9
D. 25
C. 9
400
Evaluate each expression for x= -27.
A. |x-3|
B. |x+3|
A. 30
B. 4
400
The ratio of black walnut to red oak trees at a tree farm is 4 : 5. The tree farm has 1200 black walnut trees. How many black walnut and red oak trees does the tree farm have altogether?
2700 trees
400
Simplify: 14+2*8-5^2+3^2
14
400
Rearrange, using the Associative Property: 2(3x)
(2×3)x
500
Solve: -2(3x+2)=2x+6
-5/4
500
What is the value of 15-(6^2-5^2)?
A. -104
B. -74
C. 74
D. 4
D. 4
500
As you go deeper underground, the earth's temperature increases. In some places, it may increase by 25 degrees C per kilometer. What is the rate in degrees per meter?