This Blog exists for the collective benefit of all algebra students. While the posts are specific to Mr. Chamberlain's class, any and all "algebra-ticians" are welcome. The more specific your question (including your own attempts to answer it) the better.
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Thursday, September 15, 2011
hw #1-4 ARE YOU READY FOR THE QUIZ??
hw #1-4 Due Monday Sept 20
pg 29 #1-19 ALL
pg 44 #66-78 ALL
Monday's Quiz will cover sections 1-1 thru 1-6; the emphasis in 1-5 and 1-6 will be on integers as opposed to decimals and fractions.
For #4, the cost would be the sum of: a) $32 for each of the three children ($32*3) b) $53 for the one adult ($53) c) a charge for equipment rental at $5/hour (for an unknown number of hours... let's call the number of hours h, so the charge would be ($5*h)
So, can we write a + b + c as an algebraic expression? You're darn tootin' we can!
(32*3) + 53 + 5h (which can be simplified to:) 96 + 53 + 5h 149 + 5h
Your answer should have been either the first or last. The first expression above shows the detail of based on the fees on the sign, the last expression is considered to be a simplified expression.
Anonymous, the mistake you made in your post was that you added up all the charges for the children and adults and made that an hourly charge... easy mistake to make for a neophyte algebra-tician.
I will be away all afternoon and evening, so please help each other out with questions and answers. Remember when you help someone to try and figure out a hint or question that will help them... it may also help you to view the question in from different angle.
On pg 29 number 13, when they say,"what word phrases represent the expressions". Do they mean deductive reasoning and counterexamples or something else? Help!! :)
for number 4 did you guys get [(32*3)+53]h ?
ReplyDeleter natural numbers always whole?
ReplyDeleteyes, natural numbers are always whole.
ReplyDeleteFor #4, the cost would be the sum of:
ReplyDeletea) $32 for each of the three children ($32*3)
b) $53 for the one adult ($53)
c) a charge for equipment rental at $5/hour (for an unknown number of hours... let's call the number of hours h, so the charge would be ($5*h)
So, can we write a + b + c as an algebraic expression? You're darn tootin' we can!
(32*3) + 53 + 5h (which can be simplified to:)
96 + 53 + 5h
149 + 5h
Your answer should have been either the first or last. The first expression above shows the detail of based on the fees on the sign, the last expression is considered to be a simplified expression.
Anonymous, the mistake you made in your post was that you added up all the charges for the children and adults and made that an hourly charge... easy mistake to make for a neophyte algebra-tician.
Dear Bloggers:
ReplyDeleteI will be away all afternoon and evening, so please help each other out with questions and answers. Remember when you help someone to try and figure out a hint or question that will help them... it may also help you to view the question in from different angle.
Ciao for now!
Mr. C.
On pg 29 number 13, when they say,"what word phrases represent the expressions". Do they mean deductive reasoning and counterexamples or something else? Help!! :)
ReplyDeletenumber 12 anyone?
ReplyDeletenevermind got 12. how do u explain 18?
ReplyDeleteHow come there's homework on the weekend?/ j/k
ReplyDeleteI'm still confused on subsets, so i can't do number 9. Can anyone explain it?
ReplyDeletewatch the video on classifying numbers in section1-3
ReplyDeleteDoes anyone know what to do with #17?? I have absolutely no idea what to do or even where to begin!
ReplyDelete(thats pg.29 by the way. sorry)
ReplyDeleten divided by 4 is the same as n over 4, right
ReplyDeleten divided by 4 IS the same as n over 4. its just the way you write it that's different. do u get it??
ReplyDeletekatie, for 17, i chose a real number (1) to equal abc. 3*1/1 is 3. This works with any real number, like 2 for example. 3*2/2 is 6/2.
ReplyDeleteFor Katie: if you divide any # by itself, the answer is 1. So basically the problem is 3 times 1, because you are doing abc divided by abc times 2
ReplyDeletei mean times 3
ReplyDeleteThanks so much!! Hope everyone's ready for tomorrow's quiz!!
ReplyDelete