Karen is 63 inches tall and casts a shadow that is 32 inches long. At the same time, a tree casts a shadow that is 81 inches long. How tall is the tree?
Math - Ms. Sue, Monday, January 17, 2011 at 12:25pm
Cross multiply and solve for x.
63/32 = x/81
Math - Sara, Friday, January 21, 2011 at 8:22am
well first, you set up a poportion 63 over 32,= x over 81. cross multiply 32*x is 32x cross multiply 63 * 81=5,103. 5,103/32x is 159.46...hope this helps..