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irina1246 [14]
3 years ago
6

12,486 + what = 14,471.

Mathematics
2 answers:
sineoko [7]3 years ago
6 0

Answer:

1,985

Step-by-step explanation:

If you do 14,471 minus 12,486, that would be 1,985 which would be the answer.

Hope this helps!

fomenos3 years ago
5 0

Answer:

1985

Step-by-step explanation:

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Evaluate the expression below:<br> n +n + n for n = -1<br> Ez points for anyone
Andreas93 [3]

Answer:

-3

Step-by-step explanation:

  1. Plug -1 in: -1^{2} + -1^{2} + -1^{2}  
  2. Simplify: -1 + -1 + -1
  3. Simplify: -1 - 1 - 1
  4. -1 - 1 - 1 = -3

I hope this helps!

6 0
3 years ago
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How do I apply the distributive property to create an equivalent expression for 7(5p - 2u + 7)
Helga [31]

Answer:

35p - 14u + 49

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What is the sector area? <br><br> r=7mi, 0=225 degree
Mariana [72]
0=345 I hope that help you out
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3 years ago
What is the value of x in this equation?<br><br> 2x – 12 = -52
Scrat [10]

Answer:

x = -20

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>

2x - 12 = -52

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

  1. Add 12 on both sides:                     2x = -40
  2. Divide 2 on both sides:                   x = -20

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                      2(-20) - 12 = -52
  2. Multiply:                                 -40 - 12 = -52
  3. Subtract:                                -52 = -52

Here we see that -52 does indeed equal -52.

∴ x = -20 is the solution to the equation.

5 0
3 years ago
Read 2 more answers
A walkway is being installed around a rectangular playground. The playground is 30 feet by 12 feet, and the total area of the pl
worty [1.4K]

Answer:

10.3

Step-by-step explanation:

From these question, we can illustrate the playground has a small rectangle with 30x12ft

the walkway is around it with an area of 1288ft²

the playground area = 30 x 12 = 360ft²

the length dimension of the walkway is 30+y+y( these is because the walkway is round the playground in two sides) = 30 +2y

the breadth dimension of the walkway is 12+y+y ( these is because the walkway is round the playground in two sides) = 12+2y

Area of walkway = (30+2y)(12+2y)= 30(12+2y)+2y(12+2y) = 360+60y+24y+4y²= 360+84y+4y²

The total area = 1288ft²

The total area = area of walkway - area of playground

1288ft² = 360+84y+4y² - 360

choose like terms

1288 = 360-360+84y+4y²

1288 = 84y+4y²

divide by 4

322= 21y+y²

y²+21y-322 =0

using quadratic formula

x= (-b±√b²-4ac)/2a = {-21±√21²-4(1)(-322)}/2x1 =  {-21±√441+1288}/2x1  = -21±√1729/2

-21+√1729/2   -21-√1729/2

√1729 = 41.5812457726

-21+√1729/2   -21-√1729/2

{-21+41.5812457726}/2   {-21-41.5812457726}/2

20.5812457726/2          -62.5812457726/2

10.2906228863              -31.2906228863

we disregard the negative sign

our width is 10.2906228863 ≅10.3

4 0
3 years ago
Read 2 more answers
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