This question is far easier to understand if we draw it out. I've included an image attachment to help show the relationships of the measurements. As we can see from the image, their positioning helps form a triangle that we can use the Pythagorean Theorem to find the connection range.
The Theorem is 

 where a and b are the legs and c is the hypotenuse.





So the answer to the nearest meter is 55 meters.
 
        
        
        
The LCM of 3 and 4 is 12.
I hope this helps and have a good night! :D
        
                    
             
        
        
        
Answer:
15 gallons
Step-by-step explanation:
To find how much the passenger car holds, we need to first find what 50% of the trucks gas tank holds.
Truck Gas Tank = 30 gallons
Now we find how much 50% of 30 is:
50% = 0.50
Total = 30 x 0.50
Total = 15 Gallons
So the passenger car holds 15 gallons of gas.
 
        
             
        
        
        
Answer:
variables look like letters of the alphabet.
I hope this helps
 
        
                    
             
        
        
        
Find ing the common denominator would make it 10.
for 1/2 to get to 10 you have to multiply by 5
1/2x5= 5/10
then you have to convert 2/5 to get the denominator to be 10
so you multiply 2/5 by 2
2/5x2= 4/10
5/10 is greater than 4/10