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SAT Review
If 4a= 2a-8, then a+6
If 4a = 83b what is a?
SAT Review
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Questions
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Answers
1
If 4
a
= 8
3b
what is a?
4.5b
6b
23b
9b
2
If 4a= 2a-8, then a+6
0
2
-2
-10
3
If n= -1/2, which of the following does not equal n?
- (-1)/(-2)
1/-2
-1/-2
-1 * (1/2)
4
If √(x+6)=5 then x=
19
11
-11
-1
5
If a=1 and b=-1, the a
b
- b
a
=
0
1
-1
2
6
If the sum of a-2, a, and a+2 is 0, then a =
-2
-1
1
0
7
If x+2x+4x= -14, then x=
-2
-1
7/4
-7/4
8
If x=y/6 then y+3
2x
(x+3)/6
6x-3
6x+3
9
If c= 1/ (1/a+ 1/b) when a=1 and b=1/4, then c=
4/5
4
5/4
1/5
10
If n= -1 then n
3
+ n
2
=
-1
0
-2
2
11
(a+b)/b=
a+1
1/a
a-b
1 + (a/b)
12
If x= -2, then (2-x)
2
=
0
8
16
-16
13
If n= -1 then n + n
2
+ n
3
+ n
4
=
0
1
-1
-4
14
If (x* x
2
* x
3
*x
4
) / (x
5
* x
6
* x
7
*x
8
) =x
n
then n=
-16
16
8
-8
15
If x = √(1/16), then x
3
=
1/4
1/2
1/64
2
16
The solution set of the equation √n =n is
{-1}
{0}
{-1,0,1}
{0,1}
17
If n=2, then (2n)
3
=
12
48
36
64
18
If n=1, then (n+1)
n+1
+ (n+1)
n-1
=
6
5
4
0
19
(1/2 x
6
)
2
x8
1/4 x12
x12
1/4 x8
20
Solve for a if (4b+8a)/3 =5
(15-4b)/8
(15+4b)/8
(5+4b)/4
(5-4b)/4
21
If p/3 + 4 =7
9
12
0
6
22
If 9/5 =7/x then x=
7/45
9/35
35/9
7/5
23
What is the value of the expression (x+2y)/(x-2y) when x=5 and y=2?
-1
-7/3
9
7/3
24
If √(x-2)=7, then x=
-9
51
9
-14
25
If a=5b and b=3c, what is the value of c when a=600?
50
25
40
30
