Expressions
Which verbal expression represents 2(n- 6)?
1) two times n minus six
2) two times six minus n
3) two times the quantity n less than six
4) two times the quantity six less than n
4) two times the quantity six less than n
1 In a molecule of water, there are two atoms of hydrogen and one atom of oxygen. How many atoms of hydrogen are in 28 molecules of water?
1) 14
2) 29
3) 42
4) 56
4)56
Which value of p is the solution of 5p − 1 = 2p + 20?
1) 19/ 7
2) 19/ 3
3) 3
4) 7
4) 7
If the expression 3 - 42 + 6/ 2 is evaluated, what would be done last?
1) subtracting
2) squaring
3) adding
4) dividing
3) adding
An expression equivalent to 3!
1) 3 x 3
2) 3 x 2 x 1
3) 3 x 3 x 3
4) -3
2) 3x2x1
Which verbal expression is represented by 1 /2 (n- 3)?
1) one-half n decreased by 3
2) one-half n subtracted from 3
3) the difference of one-half n and 3
4) one-half the difference of n and 3
4) 1/2 the difference of n and 3
2 A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?
1) 1.75
2) 2
3) 2.25
4) 2.5
4)2.5
2 The solution of the equation 5 − 2x = −4x − 7 is 1) 1
2) 2
3) −2
4) −6
4) -6
The expression 15 – 3[2 + 6(–3)] simplifies to
1) -45
2) -33
3) 63
4) 192
3) 63
The value of 7!/ 3!
1) 840
2) 24
3) 7
4) 4
1) 840
Which verbal expression can be represented by 2(x - 5)?
1) 5 less than 2 times x
2) 2 multiplied by x less than 5
3) twice the difference of x and 5
4) the product of 2 and x, decreased by 5
3) twice the difference of x and 5
On a map, 1 centimeter represents 40 kilometers. How many kilometers are represented by 8 centimeters?
1) 5
2) 48
3) 280
4) 320
4) 320
If 2(x + 3) = x + 10, then x equals
1) 14
2) 7
3) 5
4) 4
4)4
What is the first step in simplifying the expression (2- 3 x 4 +5)^2
1) square 5
2) add 4 and 5
3) subtract 3 from 2
4) multiply 3 by 4
4) multiply 3 by 4
What is the value of 8!/ 4! ?
1) 1,680
2) 2
3) 2!
4) 4!
1) 1,680
Which verbal expression is represented by 2(x+ 4)?
1) twice the sum of a number and four
2) the sum of two times a number and four
3) two times the difference of a number and four
4) twice the product of a number and four
1)twice the sum of a number and four
The amount of money spent at a parking meter varies directly with the amount of time spent parked in the parking space. Noah spent $1.50 to park 90 minutes. How many minutes can he park for $4.00?
1) 667
2) 360
3) 240
4) 135
3)240
If 3(x + 2) − 2(x + 1) = 8, the value of x is
1) 1
2) 1/ 5
3) 5
4) 4
4)4
. Simplify: 50 - [4(7 + 2)]
1) 14
The value of 5! is
1) 1/5
2) 5
3) 20
4) 120
4) 120
The value of the expression - a - b when a = 7 and b=-3 is
1)-10
2) 10
3)-4
4) 4
1)-10
If a machine that prints designs on T-shirts prints 500 shirts in 3 hours, how many hours will it take to print designs on 1,800 shirts?
1) 6
2) 9.8
3) 10.8
4) 12
3)10.8
What is the value of x in the equation 6(x − 2) = 36 − 10x?
1) −6
2) 1.5
3) 3
4) 6
3)3
2^3x 21+ 15/3
A] 173
[B] 171
[C] 96
[D] 91.5
A) 173
The value of the expression 6!+ 5! (3! )/ 4! - 10 is
1) 50
2) 102
3) 740
4) 7
3) 740