1.
In the expression, 12
·
z
, the letter
z
is called the _____ because it stands for an unknown number.
A.
product
B.
numerical expression
C.
algebraic expression
D.
variable
Hint
2.
Write an algebraic expression for the verbal expression ''five more than the product of
z
and 10.''
A.
5 + (
z
÷ 10)
B.
5
z
+ 10
C.
5 + (10 ÷
z
)
D.
10
z
+ 5
Hint
3.
Write an equation for the sentence ''the product of 6 and
x
is equal to the sum of
c
and
d
.''
A.
6
x
=
d
B.
6
x
+
c
+
d
C.
6 +
x
=
c
+
d
D.
6
x
=
c
+
d
Hint
4.
Write a sentence for the equation 11 +
= 16.
A.
The quotient of
x
and 2 decreased by 11 is equivalent to 16.
B.
The product of
x
and 2 increased by 11 is equivalent to 16.
C.
The product of eleven and
x
divided by 2 is equal to 16.
D.
Eleven added to
x
divided by 2 is equal to 16.
Hint
5.
The cost of a shirt is $11.99. When Ian pays for the shirt plus tax with a 20-dollar bill, he receives $7.30 in change. Which equation represents this situation if
t
is the tax on the shirt?
A.
11.99 +
t
= 20.00 - 7.30
B.
t
- 11.99 = 20.00 - 7.30
C.
20.00 - 11.99
t
= 7.30
D.
11.99
t
= 20.00 - 7.30
Hint