Mathematics - 29 June 2007

I have this question for a chem class. Here is the question.

The bulk of human food is provided by eight grains (wheat, rice, corn, barley, oats, sorghum, millet and rye). Current world grain production is about 1.8 Billion metric tons, which is enough to feed about 8.1 Billion people. Assume for the sake of this problem that grain is the only food we eat. If the world's production of food is increasing linearly at 1.4% per year, how many people will be able to be fed at the time the world's population has doubled?
A. 10.0 Billion
B. 14.2 Billion
C. 620 Billion
D. I think it should be more than 12 Billion, but I don't get answer B or C

E. I think it should be less than 12 Billion but I don't get answer A

Now I have a formula that gave me how much food will be produced. The answer is 3,060,000,000. Now I need to figure out how to convert that to how many people that number can feed. Any ideas? Thaaanks.

2007-06-29 03:03:20 · 5 answers · asked by Andy C 2

2007-06-29 01:49:09 · 14 answers · asked by lindasalicea 1

A model water rocket is launched with an initial velocity of 180ft/sec. Its height, h, in feet, after t seconds is given by the formula

h = 180t - 16t(squared)

1. After how many seconds will the rocket first reach a height of 464 ft?

2. After how many seconds from launching will the rocket again be at that same height of 464 ft?

2007-06-29 01:15:14 · 2 answers · asked by andy s 2