Answer:
45 and 450
Step-by-step explanation:
let x be the bigger number and y the smaller number, then:
495 = x+y, 10y=x
then you simplify:
495=10y+y
y=45
x=10y=450
 
        
                    
             
        
        
        
Answer: 7,8,9
Step-by-step explanation:
Let the numbers be a, a+1 and a+2. Therefore, based on the question, this will be:
= (a + 1)(a + 2) = 72
a² + 2a + a + 2 = 72
a² + 3a + 2 - 72 = a
a² + 3a - 70 = 0
a² + 10a - 7a - 70 = 0
a(a + 10) - 7(a + 10)
a - 7 = 0
a = 7
Since a = 7
a + 1 = 7+1 = 8
a + 2 = 7+2 = 9
The numbers are 7,8 and 9
 
        
             
        
        
        
Answer:
   200 mg
Step-by-step explanation:
The dose (d) is proportional to amount of fluid received, so ...
   d/(600 mL) = (400 mg)/(1200 mL)
   d = (600 mL)(400 mg)/(1200 ml)
   d = 200 mg
The patient received 200 mg of drug.
 
        
             
        
        
        
I think it's 1 3/4. I had one similar earlier.