Yanni has 5 paintings that combined, take up 200 square feet. 3 of the paintings are 5 feet by 5 feet. 1 painting is 10 feet by 8 feet. If the final painting is 5 feet tall, how wide is it? Think carefully first, then make a decision:
Each 5 by 5 painting is 25 square feet because 5 x 5 = 25. All three of them take up 75 square feet because 3 x 25 = 75. The 10 by 8 painting takes up 80 square feet because 10 x 8 = 80. These four paintings take up 155 square feet because 80 + 75 = 155. The final painting is 45 square feet because 200 - 155 = 45. If it is 5 feet wide it is 9 feet tall because 45 / 5 = 9. So, the answer is 9.