Hello class, this is Lilly with the scribe of today.
Today we practiced solving equations using DPE, MPE, APE and SPE.
Our pod was the following: Write and solve an equation to answer the following problem.
* Wilfred bought 2 tennis racquets and 5 cans of tennis balls at a total cost of $263.75. The racquets cost $130 each. How much did each can of tennis balls cost?
First we made a variable which in this case was c=cost of 1 can of tennis ball. Then we made an equation which was 130+5c=263.75 then we used MPE to do 130•(2)+5c=263.75. After that you use SPE to do 260-260+5c=263.75-260.00, after that you use DPE to do 5c÷5=3.75÷5 and we got the answer which was c-75 cents.
After this we practiced solving x:
1.) 5x-(3+x)=9 to solve it we did 5x-3-x=9 then we combined the like terms to do 4x-3=9 after this we used APE to do 4x-3+3=9+3 which gave us 4x=12 and then we used DPE to get the answer by doing 4x÷4=12÷4, and that gave us the answer of x=3.
2.) -3(2x-4)+8x=0 to solve it we first distributed to get -6x+12+8x+(-20)=0 then we combined like terms to get 2x+(-8)=0 after that we used APE to do 2x+(-8)+8=0+8 which got us to 2x=8, after this step we used DPE to do 2x÷2=8÷2 which gave us the answer of x=4.
3.) x+4÷2=2(x-3) and we first distributed to get x+4÷2=2x-6 after this we used MPE to do 2•(x+4÷2)=(2x-6)•2 and then we used SPE to do x+4-x=4x-17-x which gave us 4=3x-12 and then we used APE to do 4+12=3x-12+12 which gave us 16=3x and the answer was x=16/3.
We had optional HOMEWORK: page #148, numbers 7-19 odds and 23-25 all. page #142 numbers 10-21
Ill see you all Monday, enjoy your weekend and i nominate the next scribe to be Austin.
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5 comments:
sorry guys that its so small. i had it on normal handwriting the hole time.. it looked a lot larger when i was writing it. sorry about that again!!!
-Lilly
Lilly,
Thanks for such quick work.
You can edit your post by clicking on the pencil icon at the bottom of the post. Once you do that, you can highlight the text you want and then click "text size" and make it larger. (Your readers can also enlarge it by clicking on "Make text bigger" or "Increase text size" on their browsers)
There are some problems with example #3. The answer is correct but does not follow from your explanation. You should edit this example if you know how to fix it or perhaps one of your associates will suggest appropriate repairs in the comment section.
Thanks again.
Lillay!!!!
have agood weekend!!
=]
i dont think it was to small!!
Austin isnt here LALALALALAL =)
sory, im ok. OMG I AM SO HYPED UP FOR DA GAME TMRW!!!!!!! YAYAYAYAA
=00000
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