3/10 =50/x First multiply 50x10 then divide that number by 3 to get the answer
        
             
        
        
        
Answer:
2.47 
Step-by-step explanation:
convert it to a decimal = 2.47058823.... 
then round that to a nearest hundredth = 2.47
 
        
                    
             
        
        
        
11/3 - 2/3 = 9/3 = 3 so he spent 3 more hours reading on saturday than on friday
Hope this helps!
        
             
        
        
        
Answer:
6 ounces
Step-by-step explanation:
this one is mainly elimination. 3.8 and 4.9 cant be because they're too close to the mean. and 7.1 is too far. you can also use z-score. the z score of .975 is 1.96 we can plug that into out formula so
1.96=(x-3.8)/1.1
multiply both sides by 1.1 and then add 3.8
you can also use scientific calculator. 
second vars, 3, the area is your percent so .975, the u is mean so 3.8, the o is standard deviation so 1.1