1.
Which of the following sentences is true?
A.
when
x
= 5.
B.
3
x
+ 5 <
x
2
when
x
= 4.
C.
when
x
= 6.
D.
when
x
= 4.
Hint
2.
Find the solution of 4
x
+ 10 = 42
if the replacement set is {6, 7, 8, 9}.
A.
7
B.
6
C.
8
D.
9
Hint
3.
Find the solution of 2(
x
– 5) = 30
if the replacement set is {19, 20, 21, 22}.
A.
22
B.
19
C.
21
D.
20
Hint
4.
Translate the sentence into an equation. Four times the number
n
is equal to twice the sum of
q
and
r
.
A.
4
n
= 2(
q
+
r
)
B.
4
n
= 2
q
+
r
C.
4
n
= 2(
q
–
r
)
D.
4
n
=
q
+
r
Hint
5.
Translate the equation into a verbal sentence.
A.
One-third times the difference of a number
x
and 5 is 4.
B.
One-third of a number
x
minus 5 equals 4.
C.
Five subtracted from the quotient of
and a number
x
is 4.
D.
One-third of a number
x
minus 4 equals 5.
Hint