Multiple Choice
3. What is the solution to –30 + k = 9? (1 point)
k = –39
k = –21
k = 21
k = 39
4. What is the additive inverse of 22? (1 point)
22
–22
–(–|–22|)
–(–(–(–22)))
5. What is the solution to z + 9 = –18? (1 point)
z = 27
z = 9
z = –9
z = –27
6. What is the value of 21 + 62 – (35 – 8) • 3? (1 point)
90
0
–24
–54
7. What is the solution to 7 • p = –56? (1 point)
p = –49
p = –8
p = 8
p = 49
8. Which expression can be written as 5 • (2 + 7)? (1 point)
5 • 2 + 7
5 – (2 + 7)
(5 • 2) + (5 • 7)
(5 + 2) + (5 + 7)
9. What is the solution to –10 • w = –50? (1 point)
w = 10
w = 5
w = –5
w = –10
10. Which property is shown by 0 + 9 = 9? (1 point)
Distributive Property
Commutative Property of Addition
Identity Property of Addition
Associative Property of Addition
11. What is the solution to –5 + z = –12? (1 point)
z = –17
z = –7
z = 7
z = 17
12. How is the sentence “15 more than x is 5 ” written as an equation? (1 point)
x + 5 = 15
x = 15 + 5
x – 15 = 5
x + 15 = 5
13. What is the solution to – = –6? (1 point)
x = –9
x = –6
x = 6
x = 9
13. What is the solution to – = –6? (1 point)
x = –9
x = –6
x = 6
x = 9
14. Which property is shown by 9 + 8 = 8 + 9? (1 point)
Distributive Property
Identity Property of Addition
Commutative Property of Addition
Associative Property of Addition
15. What is the solution to k + (–12) = 42? (1 point)
k = –54
k = –30
k = 30
k = 54
16. Which symbol will make the number sentence –|16| ? 16 true? (1 point)
=
<
>
17. What is the solution to –8p = –40? (1 point)
p = –32
p = –5
p = 5
p = 32
18. What is the solution to = 6? (1 point)
q = –42
q = –13
q = 13
q = 42
19. Which set of numbers are ordered correctly from least to greatest? (1 point)
0, –3, –|4|, |–5|, 8
8, |–5|, –|4|, –3, 0
–|4|, –3, 0, |–5|, 8
|–5|, –|4|, –3, 0, 8
20. How is the sentence “4 more than q is –4” written as an equation? (1 point)
4 – 4 + q = 0
q = 4 + (–4)
q + 4 = –4
q – 4 = 4
21. Which symbol will make |–6| ? –6 true? (1 point)
>
<
=
Nice homework dump, but I don't need the practice.
#3.
-30 + k = 9
add 30 to both sides
k = 39
Now you show some work, and we can check it.