1.
Write an equation for ''5 times a number increased by 30 is 65.'' Then solve.
A.
n
= -215
B.
n
= -7
C.
n
= -19
D.
n
= -130
Hint
2.
Translate the following sentence into an equation. Nine is the sum of 1 and two times a number.
A.
1 = 9 + 2
n
B.
9 = 1 + 2
n
C.
9 = 1(2
n
)
D.
9 = 2 +
n
Hint
3.
Translate the following sentence into an equation. Then find the number. Five times a number less than 18 is equal to 13.
A.
5
n
- 18 = 13; -6
B.
5
n
- 18 = 13; 6
C.
18 - 5
n
= 13; 1
D.
18 - 5
n
= 13; -1
Hint
4.
Translate the following sentence into an equation. Then find the number. Seven, added to two times a number, equals -3.
A.
7 + 2
n
= -3; 5
B.
7 = -3 + 2
n
; -5
C.
7 + 2
n
= -3; -5
D.
7 = -3 + 2
n
; 5
Hint
5.
Lis cell phone service costs her $9.95 per month plus 5 cents per call. If Lis bill after one month is $12, how many calls did she make? Find an equation representing the situation. Then solve the equation.
A.
9.95 + 0.05
c
= 12; 4
B.
9.95 + 0.05
c
= 12; 41
C.
9.95 + 0.5
c
= 12; 4
D.
9.95 + 0.5
c
= 12; 41
Hint