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Dahasolnce [82]
3 years ago
5

Solve this equation. 2/3x-1/5x=x-1

Mathematics
2 answers:
Alona [7]3 years ago
5 0

Answer:

x = 15/8           -> Pls. when you post math questions out there, always tell what you need, otherwise, it becomes a guessing game. Are you trying to Factor/Simplify/Roots/Polynomials, etc? This doesn't pertain to this problem it's just a general statement.

Step-by-step explanation:

Solve for x:

(2 x)/3 - x/5 = x - 1

Put each term in (2 x)/3 - x/5 over the common denominator 15: (2 x)/3 - x/5 = (10 x)/15 - (3 x)/15:

(10 x)/15 - (3 x)/15 = x - 1

(10 x)/15 - (3 x)/15 = (10 x - 3 x)/15:

(10 x - 3 x)/15 = x - 1

10 x - 3 x = 7 x:

(7 x)/15 = x - 1

Multiply both sides by 15:

(15×7 x)/15 = 15 (x - 1)

(15×7 x)/15 = 15/15×7 x = 7 x:

7 x = 15 (x - 1)

Expand out terms of the right hand side:

7 x = 15 x - 15

Subtract 15 x from both sides:

7 x - 15 x = (15 x - 15 x) - 15

7 x - 15 x = -8 x:

-8 x = (15 x - 15 x) - 15

15 x - 15 x = 0:

-8 x = -15

Divide both sides of -8 x = -15 by -8:

(-8 x)/(-8) = (-15)/(-8)

(-8)/(-8) = 1:

x = (-15)/(-8)

Multiply numerator and denominator of (-15)/(-8) by -1:

Answer: x = 15/8

agasfer [191]3 years ago
4 0

Answer: 15+√645/30, 15-√645/30

Step-by-step explanation:

I hope this helps you sorry if it is wrong.

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lys-0071 [83]

\huge \qquad \sf \: Answer

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The arc formed by two points having lesser length is known as minor arc.

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4 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=3x%20%5E%7B2%7D%20%2B%2010x%20%2B%208" id="TexFormula1" title="3x ^{2} + 10x + 8" alt="3x ^{2}
r-ruslan [8.4K]

if we're factoring you can use the AC method. A multiplied by C is 24. and 4x6 is 24.

(x+4)(x+6) is your answer

8 0
3 years ago
What is the minimum number of clients the travel agent should survey? Note that z=1.96 for a 95% confidence interval.
slega [8]

Answer:

121

Step-by-step explanation:

Given data as per the question

Standard deviation = \sigma = 840

Margin of error = E = 150

Confidence level = c = 95%

For 95% confidence, z = 1.96

based on the above information, the minimum number of clients surveyed by the travel agent is

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=  (\frac{1.96\times 840}{150})^2

= 120.47

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3 years ago
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Crazy boy [7]

Answer:

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Step-by-step explanation:

I have attached a diagram depicting the question.

From the diagram, The first tower is depicted by side AEB and the second tower CD.

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CD = 15 × 1.1547

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