Two brothers walk toward each other from a starting distance of 1200 meters. The elder walks at 80 meters per minute while
the younger walks at 70 meters per minute. How long does it
take them to be only 450 meters from each other for the first
time?

Amy is plan her school's new basketball court. the west edge of the basketball court is located on the line y = 5x + 2. the east edge cannot intersect with the west edge. on which line could the east edge be located? −y − 5x = 100 y + 5x = 100 −5x − y = 50 5x − y = 50