Choose the equation that could be used to solve this problem.
Together, Mark and David traveled 570 miles to the beach. If Mark traveled 255 miles, how far did David travel?
Let's call the distance David traveled "D".
The information given can be summarized in the equation:
255 + D = 570
Thus, the equation that could be used to solve this problem is:
D = 570 - 255
Let's assign a variable to represent the distance David traveled. Let's say "d" represents the distance David traveled.
Based on the problem, we know that Mark traveled 255 miles, and together they traveled 570 miles.
Therefore, we can set up the equation: 255 + d = 570
To find the value of "d," we can solve this equation.
To solve this problem, we can use the equation:
Total distance = Distance traveled by Mark + Distance traveled by David
We know that the total distance traveled together by Mark and David is 570 miles, and the distance traveled by Mark is 255 miles.
So, the equation would be:
570 miles = 255 miles + Distance traveled by David
To find the distance traveled by David, we need to subtract 255 miles from both sides of the equation:
570 miles - 255 miles = Distance traveled by David
315 miles = Distance traveled by David
Therefore, David traveled 315 miles.