+0  
 
0
430
8
avatar+956 

Thanks guys!

 Nov 1, 2017
edited by Julius  Nov 2, 2017
 #1
avatar+537 
-2

You can start with   -10 < 5x + 7 < 10

 Nov 1, 2017
 #2
avatar+956 
-1

Can you stop being a loser? 

Julius  Nov 1, 2017
 #4
avatar+956 
0

Your reasoning? 

Julius  Nov 1, 2017
 #5
avatar+459 
-1

it is D because:

k=15

j=2x

if j is twice k, (15*2=30) it is 30>2j

 Nov 1, 2017
 #6
avatar+956 
+1

But it said the x goes to jesse?

Julius  Nov 1, 2017
 #7
avatar+98197 
+1

a is correct

 

To see this.....

 

Jessie must take at least 30 minutes

 

So

 

x/2  >=  15      multiply both sides by 2

 

x >= 30

 

 

cool cool cool

 Nov 1, 2017
 #8
avatar+459 
+1

I see they reposted the question and I found out I read it wrong. I agree with @CPhill that its A.

 Nov 1, 2017

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