Answer:
2x - 1 = -45.
Step-by-step explanation:
2x - 1 = -45 is the required equation. 
x is the number.
 
        
             
        
        
        
Answer:
30 belongs to the set of real numbers, the set of rational numbers, the set of whole numbers, the set of natural numbers and the set of integers.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
<h2>1 < x < 6 ⇒ x ∈ (1, 6)</h2>
Step-by-step explanation:
3x - 8  > -5              <em>add 8 to both sides</em>
3x > 3        <em>divide both sides by 3</em>
x > 1
2x - 7 < 5            <em>add 7 to both sides</em>
2x < 12          <em>divide both sides by 2</em>
x < 6
From x > 1 and x < 6 we have the solution 1 < x < 6 ⇒ x ∈ (1, 6)
 
        
             
        
        
        
Answer:
18 miles per hour is an outlier
the outlier decreases the mean speed
Step-by-step explanation:
the low number of 18 is way different from the other numbers being in the 30's and 40's 
this 18 will bring the mean of all the numbers own because it is a smaller number.