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Marta_Voda [28]
3 years ago
6

Lisa bought stock three years ago and sold it today for a profit of $1,200. this is a _____.

Mathematics
1 answer:
goldenfox [79]3 years ago
8 0
Well if you are looking for the profit margin we need how much is was when she bought it, because it doesn't say, you can't say It's a increase or a decrease, so you could say this is a investment.
But considering you put this under mathematics I assume there is more to this question you forgot to post.
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The square of a positive number is equal to its triple added to 28. What is this number?​
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hi brainly user! ૮₍ ˃ ⤙ ˂ ₎ა

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\huge{ \rm{Answer:}}

The roots of the equation are 7 and -4, because 7 - 4 = 3 and 7. - 4 = -28

Step-by-step explanation:

The positive number is equal to 7.

Assuming that the number is equal to "x" we have:

\begin{gathered}x^2 = 3x + 28\\\\x^2 - 3x - 28 = 0\\\\a = 1\\\\b = -3\\\\c = -28\\\end{gathered}

By the sum and product method, we have:

\begin{gathered}S = -b / a\\\\S = -(-3) / 1\\\\S = 3\\\\\end{gathered}

\begin{gathered}P= c / a\\\\P = 28 / 1\\\\P = 28\\\\\end{gathered}

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2 years ago
Luke's bill for breakfast at a restaurant was $80. He left a 20% tip. What was the amount of
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Answer:

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Step-by-step explanation:

Multiply $80 dollars by 20% or .2.

You should get $16.

A tip for the future is to move the decimal point to the left twice.

ie. 60%=0.6, 175%=1.75, 3%=0.03

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2 years ago
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Step-by-step explanation:

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Solve with completing the square method:<br>6x²-7x+2=0 and  ax²+bx+c=0
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7 0
3 years ago
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