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Elanso [62]
2 years ago
12

X² + 8x' -2 Someone help me with this ???? Please

Mathematics
1 answer:
quester [9]2 years ago
7 0
Roots: (-4 -3V2 ;0) (-4+3V2 ;0)
Range: y€[-18; +♾)
Minimums: (-4; -18)
Vertical intercept: (0; -2)
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Weiming, Joyce and Siti divide cookies to sell in a ratio of 5: 12: 9. After Weiming sold 28 cookies, the ratio becomes 1: 8: 6.
Strike441 [17]

Answer:

216 cookies

Step-by-step explanation:

From the question,

Let the total cookies in the first place be x cookies.

Their ratio = 5:12:9

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Weiming share = (5/26)x = 5x/26

If weiming sold 28 cookies

⇒ (5x/26)-28

⇒ (5x-728)/28

Hence Weiming new share = (5x-728)/28 cookies

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The total cookies becomes = x-28

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Crossmultiply

28(x-28) = 15(5x-728)

28x-784 = 75x-10920

Collect like terms

28x-75x = -10920+784

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x = -10136/-47

x = 215.7

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2 years ago
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On my test the answer is A
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2 years ago
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