Answer:
<u>The sum of their ages now is 13</u>
Step-by-step explanation:
Dally's age = x
Dilly's age = x - 7
In 4 years time Dilly will be half Dally’s age, therefore:
Dilly's age plus four equals to half of Dally’s age plus four,
replacing with the values and variables we know:
x - 7 + 4 = (x + 4) /2
x - 3 = (x + 4) /2
2x - 6 = x + 4 (Multiplying by 2 at both sides)
2x - x = 4 + 6 (Like terms)
x = 10 ⇒ x - 7 = 3
<u>The sum of their ages now is 13 (10 + 3)</u>
 
        
             
        
        
        
Answer:
C.
Step-by-step explanation: HOPE THIS HELPED
 
        
             
        
        
        
Answer:
2*10^-1
Step-by-step explanation:
U shud know y
 
        
             
        
        
        
Answer:
The answer is 121.5 sq. units.
Step-by-step explanation:
To find the answer, 
Area of Pentagon: About 61.5 sq. units
Area of Rectangle: 60 sq. units
61.95 + 60 = 121.5 sq. units
Thanks, I hope I got this right!
 
        
                    
             
        
        
        
Combine like terms
8u+3u= 11u
and
9v-5v= 4v
So the answer is 11u+4v