Answer:
#4. 2.9
#5. -0.83
#6. 0.15
#7. 3/5
#8. -1
#9. -3 7/8
Step-by-step explanation:
#4 - 6
Additive Inverse Formula
a = -b
a - Additive Inverse of Number
b - whole number
-2.9 = 2.9
5/6 transforms to 0.83 = -0.83
-0.15 = .15
(Change the fractions so it becomes improper and simplify)
#7 - 9
#7
2 3/5 + 3 1/5
- -13/5 + 16/5
- 16/5 - 13/5
- 3/5
Answer: 3/5
#8
-3.7 + 2 7/10
- -3.7 + 27/10
- -3.7 + 2.7
- -1
Answer: -1
#9
-1 3/4 + 2.25 + -4 3/8
- -7/4 + 9/4 + -35/8
- 2/4 + -35/8
- 4/8 + -35/8
- -31/8
- -3 7/8
Answer: -3 7/8
