The Des Plaines River Bridge is 2.1 km long. Engineers are considering re-lighting the bridge with a pole placed every 120 feet of the bridge length starting from the south end. Each pole will support four light globes. How many globes will be required for the re-lighting project?.

Question

Mathematics

Adrianna Decker

11 December, 14:36

The Des Plaines River Bridge is 2.1 km long. Engineers are considering re-lighting the bridge with a pole placed every 120 feet of the bridge length starting from the south end. Each pole will support four light globes. How many globes will be required for the re-lighting project?.

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Answers (1)

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Angela House · Answer 1

The amount of globes needed/required for the re-lightning project of the Des Plaines River Bridge is approximately 228. The equation for the answer is 2.1 km * 1mi/1.60934km * 5280 ft/mi = 6889.781ft / 120ft = 57.41 poles, 57*4 = 228 bulbs.