Question

Check my answer's? part 2 ;)
Simplify.
6.2 + (–1.9)
A.–8.1
B.4.3
C.–4.3
D.8.1
[I think D]

Evaluate x + y when x = –18.2 and y = 3.6
A.21.8
B.–14.6
C.–21.8
D.14.6
[I think B]

Write an expression to model the following situation:
"When Rafa woke up, the temperature was –9°C. By noon, the temperature had increased by 7°C."
What was the temperature at noon?
A.–9 – 7
B.9 + 7
C.–9 + 7
D.9 – 7
[I think C]

Simplify.
–2.2 – 3.1
A. 0.9
B. –0.9
C. –5.3
D. 5.3
[I think C]

Simplify. 17 – (–8) – 9
A.34
B.18
C.0
D.16
[I think D]

Answer 1

Simplify 7 – 3x – 4 + x.
A.1
B.3 – 3x
C.2x – 3
D.3 – 2x
[I think D]

Answer 2

1st is 4.3

Answer 3

Rest idk-

Answer 4

thanks

Answer 5

For the second one, just put in the values of x and y.
x + y
(-18.2) + (3.6)
-14.6

Your right, the answer is B: -14.6

Answer 6

The third one is correct.

Answer 7

Forth one is correct.

Answer 8

Fifth one is correct.

Answer 9

And the last one is correct too. Nice work. :)

Answer 10

thank you