This Blog exists for the collective benefit of all 7th grade math students. While the posts are specific to Mr. Chamberlain's class, we welcome comments from everyone. The more specific your question (including your own attempts to answer it) the better.
EVEN MORE WELCOME ARE ANSWERS FROM FELLOW STUDENTS. BLOG ON!
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Tuesday, March 1, 2011
hw #4-7 Unit Review
Problems, Problems, Problems!!
Do 'em and ask questions... UNIT TEST on Monday!!
I think you would have to have two models. You would then have to multiply the scale factor by the actual size. Once you have got both the models calculated you then subtract the model calculations. I'm not 100% sure I'm right, but I tried. -Maggie
GREAT QUESTION! What if you had a 1/2 scale model of a 1/16 scale model?? Draw a picture and you'll see. Yup you guessed it! You gotsk yourself a 1/32 scal model!
YOU should be making up the tests! I think I'll put that one on the final exam!!
I will set everyone up with access to the text book website (woo-hoo)... your user-id will be your first name plus last initial, i.e. ayaazv, and your password will be 123456...
you may be asked to enter a zip code and school, just enter 07960 and select MORRIS SCHOOL DISTRICT if you are given the choice.
Hmmm... no questions before the test... I guess no news is good news??
ReplyDeleteIs the test hard?
ReplyDelete-Maggie
If you had to compare two scale factors and find out the model size if the actual was given, how would you do it... just asking
ReplyDeleteI think you would have to have two models. You would then have to multiply the scale factor by the actual size. Once you have got both the models calculated you then subtract the model calculations. I'm not 100% sure I'm right, but I tried.
ReplyDelete-Maggie
GREAT QUESTION! What if you had a 1/2 scale model of a 1/16 scale model?? Draw a picture and you'll see. Yup you guessed it! You gotsk yourself a 1/32 scal model!
ReplyDeleteYOU should be making up the tests! I think I'll put that one on the final exam!!
Thanks,
Mr. C.
i have a question how would i do the canada$ and american$ problem on the study guide
ReplyDelete-rj
This comment has been removed by the author.
ReplyDeleteYou'll need to setup and solve two separate proportions (then grab a calculator) and then compare your answers in order to answer the question.
ReplyDeleteAt the first bank, 0.7975 US dollar = 1 Canadian dollar.
So, given that you have 1,500 US dollars, you can set up the following proportion:
.7975/1 = 1500/c or you could have:
.7975/1500 = 1/c
Notice that either way, your cross products are the same as you solve for x (the amount of Canadian dollars).
To complete the problem, you need to setup and solve a similar proportion for the second bank and then compare your answers.
Ca-peesh??
a little confused i will ask you in homeroom for a more clear face to face explanation. ca-peesh?
ReplyDeleteTry to think about what is actually happening...
ReplyDeleteFor every 80 cents (appx) you give the bank, they give you 1 Canadian dollar... you are going to end up with more than 1500 Canadian dollars, right?
Another (perhaps simpler than a proportion) way to look at the problem is this:
How many times does 80 cents go into $1500? THAT'S how many Canadian dollars you will receive... ca-peesh?
what is that nifty website that showed the homework problems(out of the book)??
ReplyDeleteI will set everyone up with access to the text book website (woo-hoo)... your user-id will be your first name plus last initial, i.e. ayaazv, and your password will be 123456...
ReplyDeleteyou may be asked to enter a zip code and school, just enter 07960 and select MORRIS SCHOOL DISTRICT if you are given the choice.