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3 years ago

7

Jessica baked 8 dozen cookies. She left 1/4 of the baked cookies home and took the rest to school for the bake sale. How many co

okies did Jessica take to school? *

1 answer:

ASHA 777 [7]3 years ago

4 0

Jessica took 72 cookies to school.

8 dozen cookies is 96 cookies in all since 12 is a dozen.

96 divided by 4 = 24
24 multiplied by 3 = 72

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Transformation rule for dilation:

$(x,y)\to(kx,ky)$ , where k = scale factor

Given : Scale factor = $-\dfrac13$

Parallelogram JKLM has vertices J(-1, 6), K(0, 9), L(6, −3), and M(3, −3)

Vertices after dilation:

$(-1,6)\to(-1\times\dfrac{-1}{3},6\times\dfrac{-1}{3})=(\dfrac13,-2)$

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$(3,-3)\to (3\times-\dfrac13,\ -3\times-\dfrac13)=(-1,1)$

Hence, the coordinates of the image if the parallelogram = $(\dfrac13,-2),\ (0,-3),\ (-2,1),\ (-1,1) .$

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