Posted by Frank on Sunday, November 10, 2013 at 4:05pm.
A football arena measures 100ft. wide by 200ft long.The games are played on a similar rectangular field that's 150ft. long.
What is the width of the football field?
What is the perimeter of the football field?

Math  Ms. Sue, Sunday, November 10, 2013 at 4:27pm
150/200 = x/100
Cross multiply and solve for x