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swat32
3 years ago
13

Hannah and Francine have $120.hannah and Peter have $230.Peter has 6 times as much money as Francine.How much money does Hannah

have?
Mathematics
1 answer:
Sav [38]3 years ago
3 0

Answer:

$98

Step-by-step explanation:

x+6(120-x)=230

x+720-6x=230

-5x=-490

x-98

x represented how much money Hannah had.

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<u>Part A</u>

<u />4x^2 -7x-15=0\\\\(4x+5)(x-3)=0\\\\x=-\frac{5}{4}, 3

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<u>Part B</u>

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The x-coordinate of the vertex is x=-\frac{-7}{2(4)}=\frac{7}{8}

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The graph is shown in the attached image.

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