Comments (5) on “Lesson 2: close reading workshop: types of nonfiction 10010 m/j lang arts 1 – t1 unit 3: life stories”

  2. x ^ 2–2x + 1

    by splitting this equation

    x ^ 2 - x -x + 1

    there are a two terms x ^ 2 - x and - x + 1

    we take x is common from first and -1 is common from second

    x ( x - 1 ) and -1 ( x-1 )

    the quadratic roots are (x-1) and (x-1)

    x - 1 = 0

    x = 1 in both

    Therefore , the quadratic roots are 1 , 1 .

    Reply

  4. let

    x----------> number of  square jam sandwiches of Ken in the side x of rectangle

    y---------> number of  square jam sandwiches of Ken in the side y of rectangle

    A1-------------> total number of  square jam sandwiches of Ken

    A2-------------> total number of  square jam sandwiches of Sara

    we know that

    A1=xy

    A2=[(x+2)(y+2)-xy]

    A1=A2

    xy=[(x+2)(y+2)]-xy------------ > xy=xy+2x+2y+4-xy

    xy-2y=2x+4-------- > y=[2x+4]/[x-2]

    testing different values ​​of x to get a pair of whole numbers--> see the table attached I find 2 solutions 
    1)  x=3  and y=10
    A1=3*10=30
    A2=30
    total number of sandwiches of Ken------ >  30
    total number of sandwiches of Sara------ > 30 

    2) x=4  and y=6
    A1=4*6=24
    A2=24
    total number of sandwiches of Ken------ > 24
    total number of sandwiches of Sara------ >24

    [tex]Pb and j array ken has made a selection of square jam sandwiches for a party, which he arranges in a[/tex]
    [tex]Pb and j array ken has made a selection of square jam sandwiches for a party, which he arranges in a[/tex]

    Reply

Leave a Reply

Your email address will not be published.