Answer:
Yes, it's true
Step-by-step explanation:
A fraction is a part of a whole number for example 1/2. 1/2 is a half of one whole piece and if you multiply it into any whole number whether it's 2,4,6,8,10...... basically, if you multiply a fraction less than one with a non-zero whole number, it will always be less than the whole number it's being cut into smaller pieces. However, if the fraction is greater than 1, we would technically have an answer greater than the whole number product, just something to remember.
 
        
             
        
        
        
Answer:
a= 180-60-55=65 
we know that the angle of a flat(?) ground would be 180, so we can take away the 60 and 55 to find a. 
b=180-90-65=25
the sum of interior angle of a triangle would be 180, now we know what a is, also the right angle is 90, now we can take away the 90 and 65 to find b.  
c=25 
c is 25, because two angles on both sides of a X is the same 
 
        
             
        
        
        
Multiply 13 by 3
13 * 3 = 39 miles
Hope this helps :)
        
                    
             
        
        
        
Answer:
The answer is 494.40$
Step-by-step explanation:
618*80=49440
49440/100=494.40
 
        
             
        
        
        
You can say 
x+y=5 
x=5-y 
You know the value of x, put it into the next equation. 
3(5-y)-7y=19
15-3y-7y=19 
15-19 = 10y 
-4=10y 
-4/10=y 
-2/5=y 
Put y value back into either equation to find value of x. 
x+y=5 
x-2/5=5 
x=5+2/5 
x=27/5 
Therefore, x,y = (27/5, -2/5)
Hope I helped :)