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SIZIF [17.4K]
3 years ago
14

Helpppppppppppppppppppppppppppp

Mathematics
1 answer:
Butoxors [25]3 years ago
4 0

Answer:

x = 2

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>

10.5x - 1.9 = 19.1

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

  1. Add 1.9 to both sides:                    10.5x = 21
  2. Divide 10.5 on both sides:             x = 2

<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>:                     10.5(2) - 1.9 = 19.1
  2. Multiply:                                21 - 1.9 = 19.1
  3. Subtract:                               19.1 = 19.1

Here we see that 19.1 does indeed equal 19.1.

∴ x = 2 is a solution to the equation.

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solniwko [45]

Answer:

Step-by-step explanation:

The admission to the fair is $5 and the cost per ride is 50 cents.

Let the number of rides that he can go on be x

If one ride costs 50 cents, x rides will cost 50×x = 50x cents. Converting 50 cents to dollar, it becomes 50/100 = $0.5.

So x rides will cost $0.5x

If his parents gave him $20, he will pay $5 to be admitted into the fair. He would be left with 20- 5 = $15

The equation to find how many rides he can go on will be

0.5x = 15

Since one ride costs $0.5

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x = 15/0.5 = 30

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3 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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(1.8 * 10^2) * (5 * 10^2)
Alinara [238K]
<span>The answer is 90,000</span>
3 0
3 years ago
What is the midpoint of the line segment with endpoints (-5.5, -6.1) and (-0.5, 9.1)?
Margarita [4]

Answer:

(-5/2, 3/2)

Step-by-step explanation:

[(-5.5+.5)/2, (9.1-6.1)/2)} = (-5/2, 3/2)

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Goshia [24]

Answer: y=kx/w^2

Step-by-step explanation:

y is directly proportional to x

y∝x        

y=kx

y inversely proportional to the square of w.

y ∝ (1/(w)^2)

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