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stepan [7]
3 years ago
13

Help with number 2 and show how you got the answer

Mathematics
2 answers:
dimulka [17.4K]3 years ago
6 0
2/5 on the pie chart it says that 2/5 of the band plays a brass instrument
luda_lava [24]3 years ago
6 0
It should be 12 people. 2/5 of 30 is 12
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What is the sum of ∞Σn=1 2(1/5)^n-1? s=1/5 s=2/5 s=5/3 s=5/2
lutik1710 [3]

The sum of the sum notation ∞Σn=1 2(1/5)^n-1 is S= 5/2

<h3>How to determine the sum of the notation?</h3>

The sum notation is given as:

∞Σn=1 2(1/5)^n-1

The above notation is a geometric sequence with the following parameters

  • Initial value, a = 2
  • Common ratio, r = 1/5

The sum is then calculated as

S = a/(1 - r)

The equation becomes

S = 2/(1 - 1/5)

Evaluate the difference

S = 2/(4/5)

Express the equation as products

S = 2 * 5/4

Solve the expression

S= 5/2

Hence, the sum of the sum notation ∞Σn=1 2(1/5)^n-1 is S= 5/2

Read more about sum notation at

brainly.com/question/542712

#SPJ1

7 0
2 years ago
1-3(x-5)=5x-12/2 <br><br><br>solve this equation​
7nadin3 [17]

Answer:

x= 1/3

Step-by-step explanation:

simplify so you can isolate x quicker: 2x-5=5x-6

subtract 2x from both sides: -5=3x-6

add 6 to both sides: 1=3x

divide both side by the 3 to isolate x: 1/3=x

4 0
3 years ago
Read 2 more answers
PLZ HELP ME WITH THISSSS
omeli [17]
1 and 5
I think I’m not sure
7 0
2 years ago
The answer for this math problem because I don’t really understand it
andreyandreev [35.5K]

Answer:

See below

Step-by-step explanation:

Start by subtracting 5.2 from both sides of the equation

  so  "subtraction property of equality "    I suppose ......

then the next step would be divide both sides by 2.5  

  which would be division property of equality  

3 0
2 years ago
Read 2 more answers
Plz help me I can't get these wrong plz help meeeee
Vika [28.1K]

Answer: w<0


Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
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