course Mth 151
Q1: Let A stand for the collection of all whole numbers which have at least one even digit (e.g., 237, 864, 6, 3972 are in the collection, while 397, 135, 1, 9937 are not). Let A ' stand for the collection of all whole numbers which are not in the collection A. Let B stand for the collection { 3, 8, 35, 89, 104, 357, 4321 }. What numbers do B and A have in common? What numbers do B and A' have in common?A1: Since we know that in set B there are the numbers 3, 8, 35, 89, 104, 357, 4321 and A stands for the collection of all whole numbers which have at least one even digit then the numbers in set B that are whole numbers and have one even digits is what A and B have in common. Set A and set B have 8, 89, 104, 4321 in common. If A’ is what is not in collection A then this would be what was left over from B that did not get included in collection A. So A’ and set B have 3, 35, and 357 in common.
SR: 3
Ok
Q2: I have in a room 8 people with dark hair brown, 2 people with bright red hair, and 9 people with light brown or blonde hair. Nobody has more than one hair color. Is it possible that there are exactly 17 people in the room?
A2: No, because no one person has more than one hair color so you would take the 8 people with dark brown hair and add to them 2 with bright red hair and 9 with either light brown or blonde hair 8+2+9=19 which is two more then 17.
SR: 3
Ok
Q3: I have in a room 6 people with dark hair and 10 people with blue eyes. There are only 14 people in the room. But 10 + 6 = 16, which is more than 14. How can this be?
A3: For this to be correct two of the people with blue eyes would have to have dark hair. Then it would be 10+4=14 people. There is nothing in the problem that states the people with blue eyes can not have dark hair or visa versus
SR: 3
Ok
Q4: In a set of 100 child's blocks 60 blocks are cubical and 40 blocks are cylindrical. 30 of the blocks are red and 20 of the red blocks are cubical. How many of the cylindrical blocks are red?
A4: We know that 30 of the blocks are red and that only 20 of these red blocks are cubical. Therefore you subtract 20 from 30 and you get 10 left over red blocks. The only other shape block there is would be a cylindrical block so there are 10 red cylindrical blocks.
SR: 3
Ok
"
Good, but you need to simply insert your answers into a copy of the original document. Don't remove anything from that document. No problem so far, but that will become important in the future.
course Mth 151
3 June 2010 9:57 p.m. email and access code wrong on previous form
Section 1: Open Q.A.Q1: Let A stand for the collection of all whole numbers which have at least one even digit (e.g., 237, 864, 6, 3972 are in the collection, while 397, 135, 1, 9937 are not). Let A ' stand for the collection of all whole numbers which are not in the collection A. Let B stand for the collection { 3, 8, 35, 89, 104, 357, 4321 }. What numbers do B and A have in common? What numbers do B and A' have in common?
A1: Since we know that in set B there are the numbers 3, 8, 35, 89, 104, 357, 4321 and A stands for the collection of all whole numbers which have at least one even digit then the numbers in set B that are whole numbers and have one even digits is what A and B have in common. Set A and set B have 8, 89, 104, 4321 in common. If A’ is what is not in collection A then this would be what was left over from B that did not get included in collection A. So A’ and set B have 3, 35, and 357 in common.
SR: 3
Ok
Q2: I have in a room 8 people with dark hair brown, 2 people with bright red hair, and 9 people with light brown or blonde hair. Nobody has more than one hair color. Is it possible that there are exactly 17 people in the room?
A2: No, because no one person has more than one hair color so you would take the 8 people with dark brown hair and add to them 2 with bright red hair and 9 with either light brown or blonde hair 8+2+9=19 which is two more then 17.
SR: 3
Ok
Q3: I have in a room 6 people with dark hair and 10 people with blue eyes. There are only 14 people in the room. But 10 + 6 = 16, which is more than 14. How can this be?
A3: For this to be correct two of the people with blue eyes would have to have dark hair. Then it would be 10+4=14 people. There is nothing in the problem that states the people with blue eyes can not have dark hair or visa versus
SR: 3
Ok
Q4: In a set of 100 child's blocks 60 blocks are cubical and 40 blocks are cylindrical. 30 of the blocks are red and 20 of the red blocks are cubical. How many of the cylindrical blocks are red?
A4: We know that 30 of the blocks are red and that only 20 of these red blocks are cubical. Therefore you subtract 20 from 30 and you get 10 left over red blocks. The only other shape block there is would be a cylindrical block so there are 10 red cylindrical blocks.
SR: 3
Ok
"
&#I need to see the questions so I can be sure what your answers mean. Most of the time I can tell, but I'm dealing with information that comes in from over 1000 different files, containing a total of about 10 000 questions. While I'm familiar with the content and sequencing of the questions, having written them all, and know what I'm looking for, different students will answer these questions in different ways and I need to be able to relate your answers to the specific wording of each question.
When reviewing my responses you will also need to be able to relate your answers and my comments to the specifics of the original document.
So it will be important for you to insert your responses into a copy of the original document, according to instructions, without otherwise changing any of the content of the original document.
This will ensure you of the best possible feedback on your work. &#
#$&*