1.
Find a solution to the equation using backtracking.
8
b
– 5 = 19
A.
b
= –2
B.
b
= 3
C.
b
= –3
D.
b
= 2
Hint
2.
Find a solution to the equation using guess-check-and-improve.
10
a
+ 4(
a
+ 1) = 32
A.
a
= 2
B.
a
= 7
C.
a
= 10
D.
a
= 4
Hint
3.
In a bag of 53 cherry- and watermelon-flavored candies, there are 19 more watermelon than cherry candies. Write an equation to determine how many candies are cherry.
A.
If
w
= number of watermelon candies,
w
+ (
w
+ 19) = 53.
B.
If
c
= number of cherry candies,
c
+ 19 = 53.
C.
If
c
= number of cherry candies,
c
+ (
c
+ 19) = 53.
D.
If
w
= number of watermelon candies,
w
+ 19 = 53.
Hint
4.
In a bag of 53 cherry and watermelon-flavored candies, there are 19 more watermelon than cherry candies. How many cherry candies are there?
A.
17
B.
19
C.
36
D.
34
Hint
5.
Nine more than a number is the same as 18 less than 4 times the same number. Write an equation that models this statement.
A.
y
– 9 = 4
y
– 18
B.
y
+ 9 = 4
y
– 18
C.
y
+ 9 = 18 – 4
y
D.
y
– 9 = 18 – 4
y
Hint