The last question is very confusing to me. Is the given LLF (.8), CoU (.8), and Lumens (6500) for the originally scheduled fixture? If so, when you plug all those numbers into the equation, you get an answer of 1.9 luminaires, rounded up to 2, and the question says there are 2 fixtures scheduled. So I guess first of all I don't understand what the problem is that we are trying to solve. In your answer, you've ignored the 6500 lumens given, and are now trying to solve the equation with two variables: lumens and # of luminaires...why are we doing that? And how do you solve an equation with two variables? Would be nice to see the math fully explained for those of us not good with numbers. Anyway, now it seems we're assuming fixtures A, B, C, and D all have the same LLF and CoU of the original fixture, but with varying lumens, and we need to determine which of those fixtures, and how many, meets the required 12,500 number. But again, I don't understand why we're doing that if the original fixture seemed to work for the requirements stated in the question. Lastly, I feel like the answers provided are confusing as well because of how they're worded. For example, answer A: "5500 lumens, 2 total" seems to say to me 2 total fixtures providing a total of 5500 lumens. If it were worded "Fixture A: 2 total fixtures at 5500 lumens each", it would make more sense. Can someone PLEASE help me understand this question...why doesn't the originally scheduled fixture work? what happened to the 6500 lumens given? How do you solve X = 8000/.64x to get x=12,500/x? I apologize if I've completely misinterpreted the question, but I'm just completely lost here.
The last question is very confusing to me. Is the given LLF (.8), CoU (.8), and Lumens (6500) for the originally scheduled fixture? If so, when you plug all those numbers into the equation, you get an answer of 1.9 luminaires, rounded up to 2, and the question says there are 2 fixtures scheduled. So I guess first of all I don't understand what the problem is that we are trying to solve. In your answer, you've ignored the 6500 lumens given, and are now trying to solve the equation with two variables: lumens and # of luminaires...why are we doing that? And how do you solve an equation with two variables? Would be nice to see the math fully explained for those of us not good with numbers. Anyway, now it seems we're assuming fixtures A, B, C, and D all have the same LLF and CoU of the original fixture, but with varying lumens, and we need to determine which of those fixtures, and how many, meets the required 12,500 number. But again, I don't understand why we're doing that if the original fixture seemed to work for the requirements stated in the question. Lastly, I feel like the answers provided are confusing as well because of how they're worded. For example, answer A: "5500 lumens, 2 total" seems to say to me 2 total fixtures providing a total of 5500 lumens. If it were worded "Fixture A: 2 total fixtures at 5500 lumens each", it would make more sense. Can someone PLEASE help me understand this question...why doesn't the originally scheduled fixture work? what happened to the 6500 lumens given? How do you solve X = 8000/.64x to get x=12,500/x? I apologize if I've completely misinterpreted the question, but I'm just completely lost here.
Thank you!