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Dmitry_Shevchenko [17]
3 years ago
10

PLEASE HELP!!1y+14=-4y+9 for y. Round your answer to the nearest tenth.​

Mathematics
1 answer:
slega [8]3 years ago
6 0

Answer:

y = -1.0

Step-by-step explanation:

Isolate the variable, y. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, add 4y and subtract 14 from both sides:

1y (+4y) + 14 (-14) = -4y (+4y) + 9 (-14)

1y + 4y = 9 - 14

Combine like terms:

5y = -5

Isolate the variable, y. Divide 5 from both sides:

(5y)/5 = (-5)/5

y = -5/5

y = -1

y = -1 is your answer.

~

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91 can go into 357 3 times
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3 years ago
X+y when x=13 and y=−74. Write your answer as a fractionin simplest form.
slamgirl [31]

Answer:

-61

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

Step-by-step explanation:

<u>Step 1: Define</u>

x + y

x = 13

y = -74

<u>Step 2: Evaluate</u>

  1. Substitute:                     13 - 74
  2. Subtract:                        -61
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3 years ago
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Let a be an irrational number. Is a⋅25 rational or irrational?
Ray Of Light [21]
Rational because it can be squared into 5.
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4 years ago
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Help me lol<br> this was due last week
pochemuha

Answer:

Step-by-step explanation:

1) Distribute -5 to each of the terms: -5a + 5b - 5

2) Take out the GCF which is 6y: 6y(3x + 1)

3) Distribute - 2/5: 9x - 4y

4) Take out the GCF which is 3: 3(-4d + 3e - 5)

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3 0
3 years ago
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Volume:Question 8
SSSSS [86.1K]

Answer:

84.82 inches squared

Step-by-step explanation:

Volume of a sphere formula

Volume=4/3(pi)r^2

r=4.5

therefore

4/3*pi*(4.5)^2=84.8230016469244 inches squared

round to whatever many decimal places

84.82 inches squared

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