30 students
14 have no siblings
that leaves 16 with siblings
6 have brothers and 12 have sisters which = 18 so 2 of the students have both a brother and a sister
2/30 students have a brother and a sister
1/15 chance
        
             
        
        
        
#2- yes because both can be divided or multiplied for example 3 and 9, u can multiply 3x3 to get 9 since the dilation is 3 then yes it is similar triangles
        
             
        
        
        
So to find the answer, first we need to understand how to approximate square roots. 80 is an imperfect square, so we're going to have to round the answer. To find that, we need to find the multiples 80.
72, 80, 81.
8, x, 9
So the distance apart between 72 and 81 is 9. The answer, x, is obviously between 8 and 9, and since the distance between these to is 9, your answer is going to be 8.9 .
        
             
        
        
        
<span>
four and fifty-one hundredths</span>
        
                    
             
        
        
        
Answer:
   Produce only Product B.
Step-by-step explanation:
The contribution margin per machine hour for product A is ...
   ($16 -$6)/(5 hour) = $2 per hour
The contribution margin per machine hour for product B is ...
   ($12 -$5)/(3 hour) ≈ $2.33 per hour
The company should produce the maximum possible number of the product that contributes the most per machine hour: Product B.