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erma4kov [3.2K]
2 years ago
10

-3(k-5)=27 and the way to show your work on this two step equation

Mathematics
1 answer:
PtichkaEL [24]2 years ago
3 0

Answer:

k = -4

Step-by-step explanation:

Applying the Distributive Property of Multiplication, we get

-3k + 15 = 27, which simplifies to   -3k = 12.  Then k must be

k = -12/3, or k = -4

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Answer:

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3 years ago
The width of a rectangular field is 20 feet less than its length. The area of the field is 12,000 ft? What is the length of the
Scilla [17]

Answer:

The answer is 120 feet.

Step-by-step explanation:

The area of the field (A) is:

A = w · l       (w - width, l - length)

It is known:

A = 12,000 ft²

l = w - 20

So, let's replace this in the formula for the area of the field:

12,000 = w · (w - 20)

12,000 = w² - 20

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This is quadratic equation. Based on the quadratic formula:

ax² + bx + c = 0      ⇒  

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Thus:

So, width w can be either

or

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2 years ago
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Elena L [17]

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Step-by-step explanation:

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valentina_108 [34]

<em>Answer:</em>

<em>7/78 - 35/78i</em>

<em>Step-by-step explanation:</em>

<em>A complex number is a real number, an imaginary number or a number with both real and imaginary number. Its standard form is: </em>

<em>a + bi </em>

<em> </em>

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<em> </em>

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3 years ago
52 &lt; x + 24? how do i work this?
Lostsunrise [7]

Answer: 28

Step-by-step explanation:

52

Begin by isolating x. To do this, you can substract 24 on both sides.

-24+52

28

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