Answer:
39.2
Step-by-step explanation:
56 × 7 = 392
392 / 10 = 39.2
 
        
                    
             
        
        
        
Subtract the faster speed:
721.6 - 8.4 = 713.2
Divide by 2 trains:
713.2/2 = 356.6
The slower train is going 356.6 miles per hour.
The faster train is going 356.6 + 8.4 = 365 miles per hour.
 
        
             
        
        
        
equation is g(x)=4(x-2)+7, (bit unsure of this next part) rule is g(x-2)
 
        
             
        
        
        
Answer:
Step-by-step explanation:
2.5 = 5 * .5
1 = 1
70 = 2 * 5 *  7
LCM = 2 * 5 * 7 
If you include the 1/2, you will reduce the LCM to 35, but 70 will be left out of the LCM.
 
        
             
        
        
        
I showed you how to do it in the picture.
<span>Answers:
1.) 4 1/5 = 4.22.) 12 14/15 = 12.93 (3 is repeating so draw a line on top of just the 3)<span>3.) 5 5/32 = 5.156 (the 56 is repeating so draw a line on top of just the 56)
Hope this helps you the </span><span>way you want! </span><span>-Jabba</span></span>