[lace-chat] Maths question
Thank you to the people who helped me with this problem. I now know what to do when I visit the library this afternoon. Patricia in Wales To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
[lace-chat] maths question from a non mathematician
This has nothing to do with lace but I've seen this question answered before - when I didn't need the info. I have a magazine with patterns printed at 50% and 75% of full size. What size do I need to set a photocopier to get 100% of pattern size? Thank you. Patricia in Wales To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
The 50% has to be doubled (200%) The 75% has to be at 133% (I think) There should be a formula for it, but I don't know what it is. Clearly the 50% is half of what you want. The 75% needs to be increased by 1/3 of 75% in order for it to get to 100% lrb "My email sends out an automatic message. Arachne members, please ignore it. I read your emails." -Original Message- >From: scotl...@aol.com >Sent: Oct 1, 2015 8:17 AM >To: lace-chat@arachne.com >Subject: [lace-chat] maths question from a non mathematician > >This has nothing to do with lace but I've seen this question answered before - >when I didn't need the info. I have a magazine with patterns printed at 50% >and 75% of full size. What size do I need to set a photocopier to get 100% of >pattern size? > >Thank you. > >Patricia in Wales > >To unsubscribe send email to majord...@arachne.com containing the line: >unsubscribe lace-chat y...@address.here. For help, write to >arachne.modera...@gmail.com. Photo site: >http://www.flickr.com/photos/lacemaker/sets/ To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
Thank you Lynne That makes sense to me. An answer many years ago used a formula which I didn't understand. I'm going to save your answer for future reference. Patricia The 50% has to be doubled (200%) The 75% has to be at 133% (I think) There should be a formula for it, but I don't know what it is. Clearly the 50% is half of what you want. The 75% needs to be increased by 1/3 of 75% in order for it to get to 100% lrb To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
I donât think that formula is right. If you want to double the area (A5 -> A4) you have to use 141% on a photocopier. Thatâs because you increase the length by 141% and the length by 141% 1.41 x 1.41 = 2 1.41 is the square root of 2 Going on that, if you want to increase the area by one third, the final area will be 1.33 so square root of 1.33 = 1.54 so you set the photocopier to 154% If you set the photocopier to 200% you double the length and double the width which increase the area four times Brenda > On 1 Oct 2015, at 17:36, scotl...@aol.com wrote: > > Thank you Lynne > > That makes sense to me. An answer many years ago used a formula which I didn't understand. I'm going to save your answer for future reference. > > Patricia > > > > > The 50% has to be doubled (200%) The 75% has to be at 133% (I think) There > should be a formula for it, but I don't know what it is. > > Clearly the 50% is > half of what you want. The 75% needs to be increased by 1/3 of 75% in order for > it to get to 100% lrb > > To unsubscribe send email to majord...@arachne.com containing the line: > unsubscribe lace-chat y...@address.here. For help, write to > arachne.modera...@gmail.com. Photo site: > http://www.flickr.com/photos/lacemaker/sets/ Brenda in Allhallows paternos...@appleshack.com www.brendapaternoster.co.uk To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
I missed the original post: Subject: [lace-chat] maths question from a non mathematician This has nothing to do with lace but I've seen this question answered before - when I didn't need the info. I have a magazine with patterns printed at 50% and 75% of full size. What size do I need to set a photocopier to get 100% of pattern size? It's ninth-grade algebra: (If the word "algebra" gives you brain-freeze, just read the part between dashed lines.) Let P be the percent by which the pattern in the publication has been enlarged or reduced. Let C be the percent at which you need to set your copier. Then P times C equals 100%: PC = 1 Divide both sides of the equation by P: C = 1/P - That is, you need to set the copier for the inverse of the change that you want to undo. - You can punch "1 divide P equals" on your calculator, but if the percentage happens to be a common fraction, you can just turn it upside down. 50% is 1/2, so to undo it, you use 2, which is 200%. (Remember that "per cent" means "divide by one hundred".) 75% is 3/4, so you would use 4/3, which is one and a third: 133.33% -- Joy Beeson http://wlweather.net/PAGEJOY/ west of Fort Wayne, Indiana, U.S.A. To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
Thanks Joy, The last part, which I would call arithmetic, I can understand. I'm not going to say how long it is since I studied maths but suffice it to say that it is so long ago I've forgotten what it was about. I managed O grade maths, (algebra, geometry, trigonometry) sat at 16, and that was my lot. Without that, though, I wouldn't have got into university as all my other subjects were languages, history and literature. Simple arithmetic I was always good at which is why I understand some of your explanation. You are a good teacher! Patricia >> I have a magazine with patterns printed at 50% and 75% >> of full size. What size do I need to set a photocopier >> to get 100% of pattern size? It's ninth-grade algebra: (If the word "algebra" gives you brain-freeze, just read the part between dashed lines.) Let P be the percent by which the pattern in the publication has been enlarged or reduced. Let C be the percent at which you need to set your copier. Then P times C equals 100%: PC = 1 Divide both sides of the equation by P: C = 1/P - That is, you need to set the copier for the inverse of the change that you want to undo. - You can punch "1 divide P equals" on your calculator, but if the percentage happens to be a common fraction, you can just turn it upside down. 50% is 1/2, so to undo it, you use 2, which is 200%. (Remember that "per cent" means "divide by one hundred".) 75% is 3/4, so you would use 4/3, which is one and a third: 133.33% -- Joy Beeson http://wlweather.net/PAGEJOY/ west of Fort Wayne, Indiana, U.S.A. To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/ To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
Re: [lace-chat] maths question from a non mathematician
I knew there had to be an equation. lrb "My email sends out an automatic message. Arachne members, please ignore it. I read your emails." -Original Message- >From: Joy Beeson <joybee...@comcast.net> >Sent: Oct 1, 2015 4:29 PM >To: lace-chat@arachne.com >Subject: Re: [lace-chat] maths question from a non mathematician > >I missed the original post: > >>> Subject: [lace-chat] maths question from a non >>> mathematician >>> >>> This has nothing to do with lace but I've seen this >>> question answered before - when I didn't need the info. >>> I have a magazine with patterns printed at 50% and 75% >>> of full size. What size do I need to set a photocopier >>> to get 100% of pattern size? > >It's ninth-grade algebra: (If the word "algebra" gives you >brain-freeze, just read the part between dashed lines.) > > >Let P be the percent by which the pattern in the publication >has been enlarged or reduced. > >Let C be the percent at which you need to set your copier. > >Then P times C equals 100%: PC = 1 > >Divide both sides of the equation by P: C = 1/P >- >That is, you need to set the copier for the inverse of the >change that you want to undo. >- >You can punch "1 divide P equals" on your calculator, but if >the percentage happens to be a common fraction, you can just >turn it upside down. > >50% is 1/2, so to undo it, you use 2, which is 200%. >(Remember that "per cent" means "divide by one hundred".) > >75% is 3/4, so you would use 4/3, which is one and a third: > 133.33% > >-- >Joy Beeson >http://wlweather.net/PAGEJOY/ >west of Fort Wayne, Indiana, U.S.A. > >To unsubscribe send email to majord...@arachne.com containing the line: >unsubscribe lace-chat y...@address.here. For help, write to >arachne.modera...@gmail.com. Photo site: >http://www.flickr.com/photos/lacemaker/sets/ To unsubscribe send email to majord...@arachne.com containing the line: unsubscribe lace-chat y...@address.here. For help, write to arachne.modera...@gmail.com. Photo site: http://www.flickr.com/photos/lacemaker/sets/
[lace-chat] Maths
Maths Little Zachary was doing very bad in maths.His parents had tried everything. Tutors, Mentors, flash cards, Special learning centers. In short, everything they could think of to help his math. Finally, in a last ditch effort, they took Zachary down and enrolled him in the local Catholic school. After the first day, little Zachary came home with a very serious look on his face. He didn't even kiss his mother hello. Instead, he went straight to his room and started studying. Books and papers were spread out all over the room and little Zachary was hard at work. His mother was amazed. She called him down to dinner. To her shock, the minute he was done, he marched back to his room without a word, and in no time, he was back hitting the books as hard as before. This went on for some time, day after day, while the mother tried to understand what made all the difference. Finally, little Zachary brought home his report card. He quietly laid it on the table, went up to his room and hit the books. With great trepidation, his Mom looked at it and to her great surprise, Little Zachary got an A in maths. She could no longer hold her curiosity. She went to his room and said, Son, what was it? Was it the nuns? Little Zachary looked at her and shook his head, no. Well, then, she replied, Was it the books, the discipline, the structure, the uniforms? WHAT WAS IT ? Little Zachary looked at her and said, Well, on the first day of school when I saw that guy nailed to the plus sign, I knew they weren't fooling around. David in Ballarat To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace-chat [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
