Question

Couple questions? Please help, will Fan and Medal!

Answer 1

1. Is –7 + 9 = –9 + 7 true, false, or open?
true
false
open
2. Is 4x – 3 = 19 true, false, or open?
true
false
open
3. Which of the following is a solution to the equation 16 = 4x – 4?
–5
–4
5
16
4. An art student wants to make a model of the classroom. The length of the classroom is 2.4 times its width. The length of the student’s model is 42 in. What should the width of the model be?
17.5 in
20.5 in
83.6 in
100.8 in

Answer 2

I got #3 it's 5

Answer 3

#4 is 100.8

Answer 4

well, to figure out #1, just calculate

-9 + 7
and
-7 + 9

to see if they are equal to each other

Answer 5

#3 = 5 so you're right.

Answer 6

#1 that would be -2 and positive 2 sooo not equal?

Answer 7

yes

Answer 8

Thank you I just need help with #2

Answer 9

your answer for 4 is not correct

Answer 10

the length is 42in and that is 2.4 times the width, so the width = 42/2.4

Answer 11

#4 is 17.5 then?

Answer 12

yes

Answer 13

yes

Answer 14

Thank you ^_^