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Luda [366]
3 years ago
14

Please click on the photo and help

Mathematics
2 answers:
Dimas [21]3 years ago
5 0

Answer:

Crescent = 3, drop = 6, heart = 3, square = 0

Step-by-step explanation:

Assign each symbol a variable and set up an equation

Crescent = a

Drop = b

Heart = c

Square = d

There’s a few different ones we can set up here

2b + d = b + 2a

2a + 3b + d = c + a + 2b

a + c = b

2b + d = b + 2a can be simplified to

b + d = 2a we can do something with this and a + c = b

a = b - c

d = 2a - b

c = b - a

b = a + c

If you work out this system of equation you get the answer at the top

Leya [2.2K]3 years ago
3 0

Answer:

moons: 3

droplets: 5

hearts: 1

squares: 1

nvm dont use this

Step-by-step explanation:

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Which decimal number is equivalent to 1/10 ?<br> A.1<br> B.0.1<br> C.0.01<br> D.0.001
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Explain why the mapping diagram below represents a function.
tiny-mole [99]

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Step-by-step explanation:

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Estimate the solution to the system of equations 7x−y=7 x+2y=6 ​i need help
Yanka [14]

Answer:

(4/3, 7/3)

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
  • Subtraction Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients
  • Coordinates (x, y)
  • Solving systems of equations of using substitution/elimination

Step-by-step explanation:

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

7x - y = 7

x + 2y = 6

<u>Step 2: Rewrite Systems</u>

Equation: x + 2y = 6

  1. [Subtraction Property of Equality] Subtract 2y on both sides:                    x = 6 - 2y

<u>Step 3: Redefine Systems</u>

7x - y = 7

x = 6 - 2y

<u>Step 4: Solve for </u><em><u>y</u></em>

<em>Substitution</em>

  1. Substitute in <em>x</em>:                                                                                                7(6 - 2y) - y = 7
  2. Distribute 7:                                                                                                    42 - 14y - y = 7
  3. Combine like terms:                                                                                       42 - 15y = 7
  4. [Subtraction Property of Equality] Subtract 42 on both sides:                    -15y = -35
  5. [Division Property of Equality] Divide -15 on both sides:                             y = 7/3

<u>Step 5: Solve for </u><em><u>x</u></em>

  1. Define original equation:                                                                               x + 2y = 6
  2. Substitute in <em>y</em>:                                                                                                x + 2(7/3) = 6
  3. Multiply:                                                                                                           x + 14/3 = 6
  4. [Subtraction Property of Equality] Subtract 14/3 on both sides:                  x = 4/3
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