Pchuang Posted 19 years ago
Vocabulary
how much exactly is it? a factor of 100
0 context: the article is talking about how to reduce the cost of transport by rocket. 02 br
00 it states that "it currently costs approximately $10,000 per pound to put payloads in orbit, more than their value if they were made of gold." 02 br
02 br
00 later it says: 02 br
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00 "Efforts are underway to bring down rocket costs through the use of reusable launch vehicles, but costs will have to come down by a factor of at least 100 in order to develop a mass market." 02 br
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00 now I understand the phrase "by a factor of" means "a degree of", but I have trouble in understanding the following number 100. 02 br
02 br
00 what does it mean: 100 of what? dollars? pounds? percent? 02 br
02 br
00 or, a factor of 100 is a particular unit? 02 br
02 br
00 here is the link: 02 br
02 br
05 0 0230href http://www.maglev2000.com/works/how-01-c.html
00 it states that "it currently costs approximately $10,000 per pound to put payloads in orbit, more than their value if they were made of gold." 02 br
02 br
00 later it says: 02 br
02 br
00 "Efforts are underway to bring down rocket costs through the use of reusable launch vehicles, but costs will have to come down by a factor of at least 100 in order to develop a mass market." 02 br
02 br
00 now I understand the phrase "by a factor of" means "a degree of", but I have trouble in understanding the following number 100. 02 br
02 br
00 what does it mean: 100 of what? dollars? pounds? percent? 02 br
02 br
00 or, a factor of 100 is a particular unit? 02 br
02 br
00 here is the link: 02 br
02 br
05 0 0230href http://www.maglev2000.com/works/how-01-c.html
Top answer
02 br 02 br 00 $10,000 = 100 x $100. 0-
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0 The mathematical term 'factor' means the numbers which can be multiplied together to reach the product; the number 12 has 8 different possible integers as factors (12 x 1; 6 x 2; 4 x 3). 02 br
02 br
00 $10,000 = 100 x $100. In this mathematical equation, '100' and '$100' are factors of '$10,000. 02 br
02 br
00 The costs will have to come down to $100 per pound.
02 br
00 $10,000 = 100 x $100. In this mathematical equation, '100' and '$100' are factors of '$10,000. 02 br
02 br
00 The costs will have to come down to $100 per pound.
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0 01 b 00 Factor 02 b 00 is used for both division and multiplication. 02 br
00 In this case it's division that's involved. 0-
00 In this case it's division that's involved. 0-
00
0 still not very clear. 02 br
02 br
00 the original text says "by a factor of 100" not "at a factor of 100". 02 br
02 br
00 how do we know it must come down to $100 not just $100 less? 0-
02 br
00 the original text says "by a factor of 100" not "at a factor of 100". 02 br
02 br
00 how do we know it must come down to $100 not just $100 less? 0-
00
0 Review your English math: 01 b 00 factor 02 b 00 isn't used in subtraction or addition, only in multiplication and division, which you have been told already. 02 br
02 br
00 >the original text says " 01 b 00 by 02 b 00 a factor of 100" not 01 font 00 " 01 b 00 at 02 b 00 a factor of 100" 02 br
02 br
00 >the original text says " 01 b 00 by 02 b 00 a factor of 100" not 01 font 00 " 01 b 00 at 02 b 00 a factor of 100" 02 br
00
0 01 blockquote
01 cite 10 Pchuang 12 cite 10 still not very clear. 12 br10 Currently, these products are sold for $4000. As part
12 br
10 the original text says "by a factor of 100" not "at a factor of 100". 12 br
12 br
10 how do we know it must come down to $100 not just $100 less? 12 br
12 blockquote
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0 now, that is a great explanation! 02 br
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00 thank you all! 0-
02 br
00 thank you all! 0-
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