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Kobotan [32]
3 years ago
13

Can you please help me on 3n-2(-2-7n)=4(1-8n)

Mathematics
1 answer:
barxatty [35]3 years ago
6 0

Answer:

n=0

Step-by-step explanation:

3n+4+14n=4-32n

3n+14n=-32n

17n=-32

17n+32n=0

49n=0

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Will give brainliest to correct answer
nordsb [41]

Answer:

The answer is b

Step-by-step explanation:

6 0
2 years ago
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What is the length of arc S?<br> (The angle in the figure is a central angle in radians)
IgorC [24]

Answer:

π/90 or 0.0035 units

Step-by-step explanation:

equation: <em>length of the arc = ∠of the angle/360 * circumference</em>

Substitute: <em>S = 0.4/360 * 10π</em> --> C = 2πr

Simplify: S = 1/900 * 10π

Simplify: S = π/90 ≈ 0.003489 units

7 0
3 years ago
Suppose your grandparents put $500 into an investment that earns 12% interest each year. How much, to the nearest cent, will be
SashulF [63]

Answer

After the 10 years with accrued interest, there will be roughly $1,552.92 in the account.

Explanation

Using the given equation A = P(1 +r)^t

We are given that our initial start is $500.

P = 500

We are further told that the percentage interest gained is 12%, so we need to convert this into a decimal to be able to work with it.

12% / 100% = 0.12

r = 0.12

t is then our time in years

t = 10

A = 500(1 + 0.12)^10

A = 500(1.12)^10

A = 500(3.1058)

A = 1,552.92

After the 10 years with accrued interest, there will be roughly $1,552.92 in the account.


3 0
3 years ago
A kcl elixir contains 10 meq/15 ml the daily dose is 30 meq how many mls are needed for a 30 day supply
BlackZzzverrR [31]
First you need to set this problem up as a cross multiply fraction set (actually forgot the name of it so I described it as that).

10/15 * 30/x

Solve for X

450 = 10x

Simplify

45 = x

The Daily dose is 30 meq/45 ml. For a 30 day supply you just multiply by 30.

1350 ml is needed for a 30 day supply.
6 0
3 years ago
Helppppppppppppppppppppppppppp the question is post on my page
Nikitich [7]
The answer is going to be 1650 it’s easy you just gotta read it addition
8 0
3 years ago
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