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balu736 [363]
3 years ago
11

I need help - HOMEWORK

Mathematics
2 answers:
goblinko [34]3 years ago
5 0
21 hope this helped:)
kolezko [41]3 years ago
3 0

Answer:

21

Step-by-step explanation:

did the test

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Round each number to the nearest million, thousand, and ten
yawa3891 [41]

Answer:

1)

<em> </em><em>a</em><em>.</em><em> </em>4,000,000

<em>b</em><em>.</em><em> </em>4,327,000

<em>c</em><em>.</em><em> </em>4,326,800

2)

<em>a</em><em>.</em><em> </em>30,000,000

<em>b</em><em>.</em> 29,727,000

<em>c</em><em>.</em><em> </em>29,726,520

3)

<em>a</em><em>.</em> 3,000,000

<em> </em><em>b</em><em>.</em><em> </em>2,867,000

<em>c</em><em>.</em> 2,867,000

Step-by-step explanation:

i mean,,

7 0
3 years ago
The school spirit club made a banner to hang an area of 36 square feet and a length of 9 feet what is its width
tresset_1 [31]
A/length=width
36/9=width
36/9=4
The width is 4 feet.
4 0
3 years ago
Pls help me! (more info in photo)
goldfiish [28.3K]

Answer:

x+ 3/2y= 15

Step-by-step explanation:

8x+12y=120

To put the equation into standard form, the leading coefficient has to be 1. So, divide the whole equation by 8.

x+ 3/2y= 15

8 0
3 years ago
Tom says that he needs 6 rolls to obtain each possible outcome on a 6-sided die. On the fourth roll, he rolls his second "3”. To
laila [671]
Tom is incorrect

He keeps getting the same number of 1:6 on each roll.
8 0
3 years ago
Please help me its about solving system by substitution
Andrew [12]

Answer:

(-3, 4)

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

<u>Algebra I</u>

  • Terms/Coefficients
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = -x + 1

2x + 3y = 6

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

<em>Substitution</em>

  1. Substitute in <em>y</em>:                    2x + 3(-x + 1) = 6
  2. Distribute 3:                         2x - 3x + 3 = 6
  3. Combine like terms:           -x + 3 = 6
  4. Isolate <em>x</em> terms:                   -x = 3
  5. Isolate <em>x</em>:                              x = -3

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define equation:                     y = -x + 1
  2. Substitute in <em>x</em>:                        y = -(-3) + 1
  3. Simplify:                                   y = 3 + 1
  4. Add:                                         y = 4
6 0
3 years ago
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