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egoroff_w [7]
3 years ago
11

Hannah is baking 3 batches of health bars. She needs 1 2/3 cups of carob chips for each bars. Part A Hannah completed the multip

lication below and said she needed 6 cups of carob chips for 3 batches of bars What is Hannah's error? Part B What is the correct number of cups Hannah needs for 3 batches of bars? Explain how you found your answer
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
Hannah completed the multiplication below and said she needed 6 cups of carob chips for 3 batches of bars, hannah's error might be from converting mix fraction to improper fractionB.number of cups = 3( 1 + 2/3)= 3 ( 5/3)= 5 cupsHannah needs 5 cups for 3 batches of bars
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Answer:

x^2 -6x + 222/25

Step-by-step explanation:

If the zeros are as above, then ;

x = 3-√3/5 or x = 3 + √3/5

Firstly, let’s represent √3/5 by b

Thus;

The two roots are ;

x = 3-b or x = 3 + b

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x+ b -3 and x -3-b

The quadratic equation is the product of the two

(x + b-3)(x - b -3)

x(x - b-3) + b(x -b -3) -3(x - b -3)

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Collect like terms and we are left with;

x^2 -6x -b^2 + 9

So let’s put back b = √3/5

x^2 -6x -(√3/5)^2 + 9

x^2 -6x -3/25 + 9

x^2 -6x + 222/25

3 0
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