What are the decision variables in the diet problem? number of items of food to purchase number of ingredients to use amount of each ingredient to use amount of each type of food to purchase

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.