In a 400 meter race, 4 runners pass a baton as each of them runs 100 meters of the race. The table shows the split times for the
first 3 runners of a relay team. Suppose the team has set a goal of running the race in 210 seconds. Solve the equation (53,715 + 51.3 + 52.62) + n = 210 to find the number of seconds, n, within which the 4th runner must finish for the team to meet its goal. Will send image
Since the equation is addition, reverse it into subtraction. 210-53.715-51.3-52.62= 52.365. You can add 53.715 by 51.3 by 52.62 by 52.365 to check your answer, and it will be 210 so the 4th runner ran 52.365 seconds.
