Question

How do I make a compound inequality with
1.If 3 times the air pressure is increased by 2, the pressure is still less than 92 inches..
2.Twice the air pressure minus 39 is greater than 11 inches.

Answer 1

1. 3<x+2<92

2. 2>x-39>11

Answer 2

I'm not 100% sure.

Answer 3

Im not either.

Answer 4

I said it was x(3)+2=92in. > x(2)-39=11in.

Answer 5

First of all, x(3) should look like this 3x. And x(2), like this 2x.
Second, thats not a compound inequality.

Answer 6

well glad you told me. I suck at these inequalities. I don't know what im doin.

Answer 7

I'm mostly guessing, but I do know what a compound inequality looks like.
The way I wrote it is the only way I see that it can be written as a compound inequality. But if I'm wrong, I'd love to be shown how to do it right.

Answer 8

it looks right. I don't get how they would do it if it aint right.

Answer 9

Me neither.

Answer 10

ill see when it gets graded. let you know if it right.

Answer 11

Ok, thanks

Answer 12

welcome. can you try and see if this one makes sense to you.? I understand what its asking but I don't know how to make an inequality for it.

Answer 13

Part C: The average air pressure in another town is 29 inches but the actual pressure is within 4 inches of the average. Write and solve an inequality to find the range of air pressure in this town.