The answer woukd be 3.00 u guess math is my worst subject dont rage if it wrong
        
             
        
        
        
Answer:
4 [miles].
Step-by-step explanation:
1) the condition 'the entire trip took 5 hours' can be written as (where t_us - time spent upstream, t_ds - time spent downstream)

2) but the distance [D] upstream is equal the distance downstream, then the condition above can be written:

3) finally,

D=5*4/5=4 [miles].
 
        
             
        
        
        
Answer:
Step-by-step explanation:
first runs n+1 laps
and second runs n laps in the same time.
so (n+1)8=10n
10n=8n+8
10n-8n=8
2n=8
n=8/2=4
one lap=1 mile
4 laps=4 miles
4+1=5 laps=5 miles.
first runs 5 miles whereas second runs=4 miles.
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   r = ±√47
Step-by-step explanation:
   -7r^2 = -329 . . . . given
   r^2 = 47 . . . . . divide both sides by -7 (multiplication property of equality)
   r = ±√47 . . . .  square root both sides (square root property of equality)
 
        
                    
             
        
        
        
Answer:
x+8.95 and x+24.55
Step-by-step explanation:
im not going to do this