Answer:
its the  math that solve
Step-by-step explanation:
 
        
             
        
        
        
We want to find miles per hour.
Speed is distance over time.
So take 10 miles (distance) / 3 hours (time)
This is the same as 10/3. 
10/3 = 3 and 1/3
Therefore, the girl is going 3 and 1/3 miles per hour.
        
             
        
        
        
Answer:a=3.6 and b=4.8
Step-by-step explanation:(a^2)+(b^2)=(c^2)
Where c is hypotenuse is equal to 6. A right triangle is also known as a 3,4,5 triangle where the 2 legs are 3 and 4 and hypotenuse is 5. Find the factor in size difference by dividing your hypotenuse of 6 by the hypotenuse of 5 you get 1.2. Now multiply the 3 and 4 by 1 2 to get your answers of 3.6 and 4.8.
To check work simply plug in your legs as a and b
(3.6^2)+(4.8^2)=(6^2)
(12.96)+(23.04)=(36)
 
        
             
        
        
        
3×(60+7)
(3×30) + (3×7)
 90 + 21 = 111
        
                    
             
        
        
        
First substitute, then distribute, then add, then simply