<span>7w+5=3w-15
7w-3w=-15-5
4w=-20
w=-5</span>
        
             
        
        
        
Answer:
SU=5 the first option.
Step-by-step explanation:
I did the assignment.
 
        
                    
             
        
        
        
Answer:
   105 km
Step-by-step explanation:
Written as a proportion, the ratio of km to cm will be the same for both distances:
   (x km)/(17.5 cm) = (15 km)/(2.5 cm)
   x km = (15 km)(17.5/2.5) = 105 km
105 actual kilometers are represented by 17.5 cm on the map.
 
        
             
        
        
        
You do a multiplication of 2/5 times 25 and you get 50/5 which is equal to 10. So @0 students ride the school bus.
        
                    
             
        
        
        
Answer:
Total pictures = 84+12 = 96
roll of films = 96 / 24 = 4
she used 4 rolls