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Dmitry [639]
2 years ago
6

ANSWER PLEASE !! -2x-5=10 4x+2y=8 -6x+2y=12

Mathematics
1 answer:
son4ous [18]2 years ago
6 0

Answer:

x= -15/2 y=-33/2

Step-by-step explanation:

i dont know how you want to solve it but if it is "system of equations" then first solve for the first variable in on e of the equations, then substitute the result into the other equation.

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In Kelly’s new clothing store, she charges $16.50 for each shirt she sells. What was Kelly’s revenue if she sold 39 shirts last
nalin [4]
You take how many shirts she sold and then multiply it by the cost of one shirt.

Therefore, you do 39 shirts * $16.50, which is equal to $643.50 in revenue :)
5 0
3 years ago
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Find the value of a²+b <br> if...<br> a=-2 and b=5
Rainbow [258]

Answer:

9

Step-by-step explanation:

a^2 +b

Let a = -2 and b = 5

(-2)^2 +5

Exponents first

4 +5

Then add

9

6 0
2 years ago
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Solve: 4x - 8 &gt; 32 <br>A) X &lt;10 <br>B)x &gt; -10 <br>C) X &gt; 10 <br>D) X &lt; -10​
larisa [96]

Answer:

C) x > 10

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtract Property of Equality

Step-by-step explanation:

<u>Step 1: Define</u>

4x - 8 > 32

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Add 8 on both sides:                    4x > 40
  2. Divide 4 on both sides:                x > 10

Here we see that any value <em>x</em> greater than 10 would work as a solution to the inequality.

7 0
2 years ago
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Alla [95]

Answer:

Converting kilometers to meters could never be simpler with our accurate length converter! ... Meters and kilometers both belong to the metric length scale, with these two units of measurement being on the larger side. ... 1 Kilometer equals 1000 Meters (1km = 1000m) ... 3 Kilometers equal 3000 Meters (3km = 3000m) ...

Step-by-step explanation:

8 0
3 years ago
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What is the value of y<br><br> 4y squared-7y=15
zvonat [6]

Answer:

y= 3, (-5/4)

Step-by-step explanation:

4y^2-7y=15

4y^2 - 7y -15

(y-3)(4y+5)

8 0
3 years ago
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