In this question, it is necessary to first check all the details that are already provided in the question. Then after they are noted down the final thing required is to find the answer to the question by correct calculations.
Distance for which the truck traveled = 280 kilometers
Time taken to travel the given distance = 4 hours.
Then
Speed of the truck = Distance traveled/Time taken
                              = 280/4 km/hr
                             = 70 km/hr
So the truck was traveling at a speed of 70 kilometers per hour. This is the answer to both the questions that have been put up. So there is no need for any kind of second calculation. 
        
             
        
        
        
Answer:
250 mins
Step-by-step explanation:
since number of taps times time is constant
 
        
                    
             
        
        
        
This equation is telling you to subtract the value of f(x) from the value of g(x). 
f(x)= x + 2
g(x) = 3x + 5
so x + 2 - 3x -5 = -2x-3
        
             
        
        
        
Answer:
#11
2 is best described as Term one
x is best described as the Variable
16 is best described as Term two
#12
2x10=20
Step-by-step explanation:
I am pretty sure of my answers.
Hope this helped lots and lots,
sincerely, me
 
        
             
        
        
        
You can find the perimeter of any closed figure by, measuring the sides and adding all of the sides. After, you have to add all of the sides, including the base together! Hope this is correct