X=−13
Distribute
Subtract
simplify
divide both sides
then simplify again to arrive at your answer.
 
        
                    
             
        
        
        
6/40 is equalvilant because all you have to do is double or simplify it by 2
        
                    
             
        
        
        
Answer:
if your asking 1/5 as a percent its .20
Step-by-step explanation:
1/5 is equal to 2/10 and tats .20 as a percent so bam your welcome (if that was what you were asking)
 
        
             
        
        
        
Aneesha is traveling at a rate of 4400 feet per second, which means that Morris is traveling a a rate of 4397 feet per second
        
                    
             
        
        
        
Answer:

(B) Decrease by 12.5%
Step-by-step explanation:
For this case we know that the revolution is proportional to the circumference.
And we know that the average number of revolutions of 32 inch tires for Tuesday is higher than the original value of 28 inch tires for Monday. 
We know that we have x mi/hr, so we can select a value fo x in order to find the average revolutions with the following formula:

Let's say that we select a value for x for example x= 28*32 = 896, since this value is divisible by 32 and 28. 
If we find the average revolutions per each case we got:
Tuesday:

Monday:

And then we can find the % of change like this:

And if we replace we got:

Because we are assuming that the initial amount is the value for Monday and the final value for Tuesday.
So then the best answer for this case would be:
(B) Decrease by 12.5%