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Updated: 2014-10-04T21:43:27.450-07:00
2008-05-14T20:28:52.073-07:00
allowFullScreen='true' webkitallowfullscreen='true' mozallowfullscreen='true' width='354' height='297' src='https://www.blogger.com/video.g?token=AD6v5dw4NUBvYfiTK7a1ipfZs7i-uooIHev93GXsq2n4DKKTXVFVkMeutrYWKEuwX36_M-GjJnZp3hSqEMzwzGhOxQ' class='b-hbp-video b-uploaded' FRAMEBORDER='0' />2008-05-14T16:49:10.462-07:00
1. Ms. Enigma said, " Five less than one third of my age is 14." How old is Ms. Enigma?Ms. Enigma is_____. x/3 x/3 -5=14 let x= Ms. Enigma's age. +5 +5 Substitute to check... x/3=19 x/3 -5=14 x3 x3 57/3 -5=14 x=57 19-5=14 14=14 Ms. Enigma is 57.2. Suppose you have $50 and earn $8 per hour. How many hours must you work until you have $170?I must work_____.[...]2008-05-13T19:27:26.216-07:00
(embed) BubbleShare: Share photos - Find great Clip Art Images.2008-05-13T21:03:01.938-07:00
And now back to the questions.
1. The length of a rectangle is 3 times the width. The perimeter id 96cm. Find the width and length.
2. The length of a rectangle is 5m greater than the width. The perimeter is 150m. Find the width and length.
3. The width of a rectangle is 12 cm less than the length. The perimeter is 156cm. Find the width and length.
4. The length of a rectangle is 2cm less than 7 times the width. The perimeter is 60cm. Find the width and length.
2008-05-07T20:14:44.094-07:00
2008-05-05T18:57:38.398-07:00
Jessica Q's Scribe Post:
Like Terms
&
The Distributive Property
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2008-05-04T18:47:31.592-07:00
For question 4 I got it wrong because I was supposed to put decreased and not less than.(image) I got write the algebriac expression or equation for the pattern you notice wrong because I rushed and The answer on the very right lower corner isn't even understandable.
My T-Chart has the (x) axis on the left and the (y) axis on the right because that is the order it has to be in.
(image)
2008-05-02T18:52:03.690-07:00
So, this is my scribe for the Patterns and Relations Investigation Answer sheets.
2008-05-01T18:33:55.719-07:00
(image)2008-05-01T20:12:18.945-07:00
Today we learned about Algebra Tiles. We were given tiles which related to Algebra. Algebra looked like this. The colored tiles were negative intergers. The white tiles were positive intergers. The little square is a 1. The long tile is the variable. While the big square is a variable squared.In grade 8, you would only need to know about the long tiles and the small squares. In grade 9, you would use all 3.We then learned about the terms we would need to know for Algebra.TermsVariables- n/x/any letter- any number can be a variableConstants- +1/-1 -the number that never changesIntergersWhen you have intergers, think money.- = owe money+ = have money We were then given practice questions to do.Somethings to know before doing these qustions.1 .Simplify liked terms2 .Always try to have one variable & one constant on the other side of the equal sign.3 .Variable goes first.Here is some of the questions:Example 1: This is how the question would look like first(4n)(-2)(+1)(-3n). If you dont get the way the question is, you can put bubbles to seperate the intergers.Then you notice that i put a red X through the white and green variable. That shows that there was a zero pair.Next you simplify the liked terms. Where you get one positive variable and one negative 1. Death Blow of IntergersIn this section, we talked about how if theirs intergers in questions with brackets, its a different story.6 -(-3) When you see there are (-) signs touching, it means you can add.6 + 3 = 96-(-3+2) When you get something like this, you do the brackets first.6-(-1) = 7 Notice how the -(- looks like a plus sign. Thats a key trick when remembering (-) touch mean adding. ConclusionIn class, we learned about algebra and got a ton of homework. Which im almost done so go me ! And thats all of my scribe post.[...]2008-05-01T16:01:31.664-07:00
(image)2008-04-19T17:11:33.209-07:00
Surface Area2008-04-17T21:16:38.999-07:00
2008-04-17T16:41:25.372-07:00
Surface Area Of a Rectangular Prismsurface area is the total amount of area a whole 3D shape contains.formula: area front + area back+area side+ area side2+area top+area top+area bottom.area front + area back = L x Warea side + area side2 = W x Harea top+ area bottom = L x H SA = area front + area back+area side+ area side2+area top+area top+area bottom. SA= 2 (L x W) + 2(W x H) + 2 (Hx L)SA= 2 (4cm ² x2cm ²) + 2 (4 cm ² x 2 cm ²) + 2( 2cm ² x 2cm ²)SA= 2 (8cm ²) + 2 (8 cm ²) + 2 (4 cm ²)SA= 16cm ²+16cm ²+8cm ² SA= 40 cm ²looks complicated ? REALLY ITS NOT :) ___________________________________________________________volume of a rectangular prismV=(L X W) x HV= (17cm ² x 11 cm ²) x 1 cm ²V= 187 cm ² x 1cm ²V=187cm³Volume is the amount of space an object takes up.FORMULA: LxWxH= volume³[...]2008-04-15T06:19:00.811-07:00
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2008-04-14T19:55:44.565-07:00
Finding the Surface Area of a Rectangular PrismTo find out the Surface area of a Rectangular Prism the first thing you have to do is make your object into a net so it looks like this:(Surface Area : Surface area is the measure of how much exposed area an object has)After Laying out your Rectangular Prism into a net you have to find the area of each shape. So to find the surface area of the whole object you have to find the area of each shape and add them together like this:The Front and back Area = 8 x 4 = 32 cm ²The Sides Area = 8 x 4 = 32 cm ²The Bottom and the Top Area = 4 x 2 = 8 cm ²Then you multiply each one by two becuase there are two of the same shape. It makes things easier.32 x 2 = 6432 x 2 = 648 x 2 = 16Then you add all of those up and that gives you your surface area!64 + 64 + 16 = 144 cm ²Finding the Volume of a Rectangular PrismTo find the Volume of a Rectangular Prism is quit simple all you got to do is follow this formula:Length x Width x Height = Volume(Definition of Volume: The amount of space, measured in cubic units, that an object or substance occupies)Now all you got to do is plunk in your numbers and do the mathHeight x Length x Width = Volume10 cm x 6 cm x 4 cm = 240 cm ³(Since it is a three dimensional object we put cubed or ³)Thats all you have to do :) [...]2008-04-15T06:13:50.854-07:00
2008-04-14T17:01:25.136-07:00
(image) Surface Area of a Rectangular Prism .2008-04-14T15:49:32.305-07:00
(image) What I learned About Volumes and Surface AreaSurface Area = 3 + 3 + 3 + 3 + 3 + 3 = 24 cm2
2008-04-15T17:16:42.450-07:00
Jocelyne's B.O.B.SURFACE AREA: The surface area is the area of the outside part of a shape. For a rectangular prism it would be the 2 sides, the top and bottom, and the front and back. A net is an easy way to show the rectangular prism's area . The formula for this would be :surface area = area top + area bottom + area side + area side² + area front + area backORsurface area = 2(L x W) + 2(H x L) + 2(H x W)= 2(4cm x 2cm) + 2(2cm x 4cm) + 2(2cm x 2cm)= 2(8cm) + 2(8cm) + 2(4cm)= 16cm² + 16cm² + 8cm²= 40 cm² You can use the formula examples i showed you here to help you answer your own surface area question.VOLUME:The volume is the measurement of how much space the shape takes up. The answer is always cubed or in an exponent ³.The volume of a rectangular prism would look like this.The formula for this would be:volume = L x W x H= 3cm x 2cm x 2cm= 12 cm³ORvolume = area of base x height= 6cm² x 2cm= 12cm³ [...]2008-04-14T18:36:42.527-07:00
(2)=squared2008-04-10T15:26:17.067-07:00
Today, Mr. Harbec thought us how to find the volume of any prism.