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8090 [49]
3 years ago
11

Given a line segment that contains the points A,B, & C in order, and given B is the midpoint of AC, if AB = 10x - 8, and BC

= 5x + 17, find x.
Mathematics
1 answer:
Sergio [31]3 years ago
8 0
If b is the midpoint, that means AB and BC are the same lengths, so 10x-8=5x+17. Subtract 5x from both sides: 5x-8=17. 
Add 8 to both sides: 5x=25
Divide by 5 and find that x=5.
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What is 30% of $40 and I don’t know what else to type
miskamm [114]

Answer:

30% of $40 would be $12

Step-by-step explanation:

To figure this out you can do cross multiplication. Take 30 over 100 like a fraction (30/100) and then that equals x over 40 (x/40), x being 30% of $40. then you would multiply diagonally. 100 times X and 30 times 40 getting you to 100x = 1200 then isolate the variable so there is no numbers with it, meaning you have to divide both sides by 100. 100x divided by 100= X and 1200 divided by 100= 12. So X=12, meaning 30% of $40 is $12.

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Answer:

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Step-by-step explanation:

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Find the midpoint of the segment with the following endpoints.<br> (2,9) and (8,1)
vazorg [7]

Answer:

\displaystyle (5,5)

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<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)
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Step-by-step explanation:

<u>Step 1: Define</u>

Point (2, 9)

Point (8, 1)

<u>Step 2: Identify</u>

(2, 9) → x₁ = 2, y₁ = 9

(8, 1) → x₂ = 8, y₂ = 1

<u>Step 3: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

  1. Substitute in points [Midpoint Formula]:                                                         \displaystyle (\frac{2+8}{2},\frac{9+1}{2})
  2. [Fractions] Add:                                                                                                  \displaystyle (\frac{10}{2},\frac{10}{2})
  3. [Fractions] Divide:                                                                                              \displaystyle (5,5)
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aleksandr82 [10.1K]

It's unclear whether the ODE is

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