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pogonyaev
3 years ago
12

Kaitlyn solved the equation 5y=15 and found answer to be y=75. In complete sentence or two, explain what kaitylns error was? Wha

t did she do wrong? What is correct answer? Show your work and explain reasoning
Mathematics
2 answers:
Korolek [52]3 years ago
4 0

Answer:

y=3

Step-by-step explanation:

She assumed y=75, but if y=75 then you would multiply 75×5 and that doesn't equal 15. To find y you would need to divide 5 from both sides. Therefore 15÷5 would be equal to y=3. Hope this helps!

Yuri [45]3 years ago
3 0

Answer:

3

Step-by-step explanation:

Instead of dividing, Kaitlyn multiplied both sides by 5. Divide both sides by 5 to get the y by itself and you get 3

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So I solved this thing up to the point where I have x^2-x-42=0 but i have no idea how to find x from here? I mean I should but I
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Answer: x = 7

Step-by-step explanation:

x(x-1) = 42 (Area)

By trial and error method let's take x = 7

We get

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forsale [732]
<h2>Hello!</h2>

The answer is:

The correct option is the second option:

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<h2>Why?</h2>

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First solution:

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Second solution:

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Hence, we have that the correct option is the second option:

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