1.
Three more than the product of 6 and a number is 51. Write an equation and find the number.
A.
3 + 6
n
= 51; 15
B.
6 +
n
+ 3 = 51; 42
C.
6
n
+ 3 = 51; 8
D.
3
n
(6) = 51;
Hint
2.
Find a solution to the equation using guess-check-and-improve.
t
· (
t
+ 8) = 4,473
A.
t
= 61
B.
t
= 62
C.
t
= 59
D.
t
= 63
Hint
3.
Find a solution to the equation using guess-check-and-improve.
11
x
–
x
2
= 18
A.
x
= 10 (18 is also a solution)
B.
x
= 9 (2 is also a solution)
C.
x
= 18 (11 is also a solution)
D.
x
= 11 (9 is also a solution)
Hint
4.
Find a solution to the equation using guess-check-and-improve.
8
b
+ 17 = 41
A.
b
= 3
B.
b
= 17
C.
b
= 18
D.
b
= 1
Hint
5.
Which equation would it be easiest to solve using the backtracking method?
A.
r
2
+
r
= 15
B.
C.
D.
r
· (4 –
r
) = 32
Hint