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2 years ago

If Stacey bought 32 ounces of grapes, how many pounds did she buy? (There are 16 ounces in one pound.)

Mathematics

2 answers:

mixer [17]2 years ago

7 0

Answer:

2 pounds

Step-by-step explanation:

32/16=2

irina [24]2 years ago

4 0

Answer:

<h3>Stacey bought 2 pounds of grapes.</h3>

Step-by-step explanation:

Stacey bought 32 ounces of grapes.

How many pounds did she buy ?

Solution : convert 32 ounces to pounds.

$16 \: ounces = 1 \: pound \\ 32 \: ounces \: = x$

Cross Multiply

$16x = 32 \\ \frac{16x }{16} = \frac{32}{16}$

$x = 2 \: pounds$

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Solve the equation in the complex number system. x^2-12x+40=0

mylen [45]

solving the equation $x^2-12x+40=0$ we get $x=6+2i\,\,and\,\,x=6-2i$

Step-by-step explanation:

Solve the equation:

$x^2-12x+40=0$

We can solve using quadratic Formula:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

a= 1, b = -12, c = 40

Putting values:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-(-12)\pm\sqrt{(-12)^2-4(1)(40)}}{2(1)}\\x=\frac{12\pm\sqrt{144-160}}{2}\\x=\frac{12\pm\sqrt{-16}}{2}\\We\,\,know\,\,\sqrt{-1}=i\\ x=\frac{12\pm4i}{2}\\ x=\frac{12+4i}{2}\,\,and\,\, x=\frac{12-4i}{2}\\ x=\frac{4(3+i)}{2}\,\,and\,\, x=\frac{4(3-i)}{2}\\x=2(3+i)\,\,and\,\,x=2(3-i)\\x=6+2i\,\,and\,\,x=6-2i$

So, solving the equation $x^2-12x+40=0$ we get $x=6+2i\,\,and\,\,x=6-2i$

Keywords: Solving quadratic equation

Learn more about Solving quadratic equation at:

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3 years ago

What number must you add to complete the square? x2 + 14x = -5

ale4655 [162]

None of them will get into a negative number. When you have like "2x" is the number twice, right? Some number has to be negative

3 0

3 years ago

Read 2 more answers

Need help with 9 and 12(theirs a picture)

Doss [256]

Number 6 is incorrect. Remember when you see -(-1) that is addition because you are subtracting a negative from a negative so you take the negative sign away and you have a positive. The correct answer to 6 is -75. For number 9 the first thing that you are gonna do is distribute that negative sign to the -12 in parentheses. This will make it a positive 12 which leaves you with

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Next for number 12 you will distribute the - sign onto the -9 in parentheses and the -16 in parentheses. This will leave you with -16+9+16=9

Hope that this helped!

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3 years ago

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Elina [12.6K]

Answer:

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Step-by-step explanation:

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3 years ago

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yuradex [85]

Answer:

Step-by-step explanation:

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3 years ago