John's room is shaped like a box. It has a flat ceiling that is a rectangle that is 14 feet long and 9 feet wide and the walls are 7 feet high. It has one door that is 6 feet high and 3 feet wide. It has two windows that are each 5 feet high and 42 inches wide. John wants to paint the walls and ceiling, but not the door or windows. He can paint 100 square feet with a quart of paint and paint costs $3.50 per quart. He has to buy whole quarts and may have some paint left over.

Question

Stanley Morrow

Mathematics

22 December, 10:28

John's room is shaped like a box. It has a flat ceiling that is a rectangle that is 14 feet long and 9 feet wide and the walls are 7 feet high. It has one door that is 6 feet high and 3 feet wide. It has two windows that are each 5 feet high and 42 inches wide. John wants to paint the walls and ceiling, but not the door or windows. He can paint 100 square feet with a quart of paint and paint costs $3.50 per quart. He has to buy whole quarts and may have some paint left over.

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Answers (1)

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Luciano Wise · Answer 1

14 x 7 = 98 x 2 = 196

9 x 7 = 63 x 2 = 126

196 + 126 = 322 square feet

door = 6 x 3 = 18 q ft

window = 5 x 3.5 = 17.5 x 2 = 35 sq ft

322-18-35 = 269 sq ft

269/100 = 2.69 quarts so he needs 3 quarts

3.50 x 3 = $10.50