1.
Solve 6 -
m
= 5
m
+ 30.
A.
-7
B.
4
C.
7
D.
-4
Hint
2.
Solve 5.4
a
+ 8.2 = 9.8
a
- 2.8.
A.
1.2
B.
2.5
C.
-1.2
D.
-2.5
Hint
3.
Solve 75 - 9
h
= -20 + 10
h
.
A.
55
B.
-5
C.
-55
D.
5
Hint
4.
Write an equation to find the value of
x
so that each pair of polygons has the same perimeter. Then solve.
A.
4
x
+ 8 = 3
x
+ 9; 3
B.
4
x
+ 9 = 3
x
+ 8; -1
C.
2
x
+ 4 = 3
x
+ 9; 5
D.
4
x
+ 8 = 3
x
+ 9; 1
Hint
5.
Write an equation to find the value of
x
so that each pair of regular polygons has the same perimeter. Then solve.
A.
8
x
+ 4 = 10
x
; 2
B.
8
x
+ 1 = 12
x
; 1
C.
8
x
+ 4 = 12
x
; 1
D.
2
x
+ 1 = 2
x
; 1
Hint