Answer:
S = v1 t1 = 7 t1    traveling downstream
S = v2 t2 = 5 t2    traveling upstream
7 t1 = 5 t2
7 (6 - t2) = 5 t2     since t1 + t2 = 6
42 - 7 t2 = 5 t2
t2 = 42 / 12 = 3.5 hrs so t1 = 2.5 hrs
S = 7 t1 = 7 * 2.5 = 17.5 mi
Also, S = 5 t2 = 5 * 3.5 = 17.5 mi
 
        
             
        
        
        
Answer:
x8 + 1
Step-by-step explanation:
 
        
             
        
        
        
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation for example : -8-7x+-5(4)=0 . But the zero turned to -1 because a non zero constant never equals 0,but the problem doesn’t have a solution, but the answer is -1
        
             
        
        
        
Answer:
Obtuse scalene
Step-by-step explanation: