Answer:
-s = -4
Step-by-step explanation:
-9s - 4 = -8s = -9s + 8s = -4 = -s= -4
 
        
             
        
        
        
Answer:
g < 3
Step-by-step explanation:
in order to stay under his budget of 45 dollars he can get any number of gigabytes less than 3. Its not less than or equal to, because he wants to keep his bill UNDER 45 dollars, and 3 gigabytes plus his plan amounts to 45 dollars exactly.
 
        
             
        
        
        
The bike store marks up the wholesale cost of all of the bikes they sell by 30%. Andre wants to buy a bike that has a price tag of $125. What was the wholesale cost of this bike?
Answer:
$96.15
Step-by-step explanation:
Let x be the wholesale cost of the bike.
Given:
Price tag of a bike = $125.
The bike store marks up the wholesale cost of all of the bikes they sell by 30%.
So we can find the wholesale cost of the bike by the following way.


 
 
 
 
 
 

Therefore, the wholesale cost of the bike is $96.15.
 
        
             
        
        
        
Answer:
There should be 10 l of 25% orange juice and 5 l of 10% orange juice.
Step-by-step explanation:
Let the amount of the 25% orange juice be "x", while the amount of the 10% one be "y". The sum of these must be equal to 15 l, therefore:

The sum of the concentration of juice on each can must be equal to the final product, therefore:

We can now solve the system of equations as shown below:

There should be 10 l of 25% orange juice and 5 l of 10% orange juice.
 
        
             
        
        
        
54 miles per hour
Work: 324/6=54
They drove 54 miles in 1 hour