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Leya [2.2K]
3 years ago
11

The sum of a number and 7 algebraic expression

Mathematics
1 answer:
Arisa [49]3 years ago
5 0
Since it says the sum of any number not one in specific then the value will be x, plus the sum of 7,

x + 7

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Solve -3y + 14 + y = 12
ser-zykov [4K]

Answer:

y = 1

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> </u>

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

-3y + 14 + y = 12

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

  1. Combine like terms [Addition]:                                                                        -2y + 14 = 12
  2. [Subtraction Property of Equality] Subtract 14 on both sides:                       -2y = -2
  3. [Division Property of Equality] Divide -2 on both sides:                                y = 1
6 0
2 years ago
Read 2 more answers
Write an exponential function in the form y = ab that goes through points (0,4)<br> and (2, 196).
yawa3891 [41]

Answer:

y = 4(7)^{x}

Step-by-step explanation:

The form of the exponential function is y = a b^{x}

Use the given points to solve for a and b

Using (0, 4 ), then

4 = ab^{0} ( b^{0} = 1 ), thus a = 4

y = 4 b^{x}

Using (2, 196 ), then

196 = 4b² ( divide both sides by 4 )

49 = b² ( take the square root of both sides )

b = \sqrt{49} = 7

y = 4(7)^{x} ← exponential function

6 0
3 years ago
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velikii [3]

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Step-by-step explanation: :)!

6 0
3 years ago
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Jake paid $13.50 for admission to the country fair and bought 9 tickets to play games. If he spent a total of $36, what is the c
Sunny_sXe [5.5K]

Answer:

  $2.50

Step-by-step explanation:

Jake's total expenditure is ...

  total = admission + c × (number of tickets)

  36 = 13.50 + 9c . . . an equation to solve

  4 = 1.50 +c . . . . . . . divide by 9

  2.50 = c . . . . the cost of one ticket

Each ticket cost Jake $2.50.

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