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Lunna [17]
3 years ago
15

What value of n makes this expression equal to 6? 3n - (2 + n)

Mathematics
2 answers:
SVEN [57.7K]3 years ago
5 0

Answer:

4

Step-by-step explanation:

3n-2-n=6

2n-2=6

2n=8

n=4

Mnenie [13.5K]3 years ago
4 0

Answer:

n=4

Step-by-step explanation:

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if $4200 is invested in a savings account for which interest is compounded semiannually, and if the $4200 turns into $4900 in 4
nydimaria [60]
4900=4200(1+r/2)^(2*4)
Solve for r
R=(4900/4200)^(1/8))-1)*2
R=((4,900÷4,200)^(1÷8)−1)×2
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6 0
3 years ago
Read 2 more answers
the equation I=prt solves for the amount of simple interest a bank account receives after a certain period of time. I stands for
Dominik [7]

Answer:

The percentage rate is 4.5%.

Step-by-step explanation:

The given formula for simple interest is I=prt where I=simple interest, p=principle, r = percentage rate and t=time.  In the problem, we are told that after six years (t=6), $7000 (p=7000) earns $1890 (I=1890).  We can then substitute in the values for three of our variable to get the following:  1890 = (7000)(6)r.  Multiplying 7000x6 = 42000 giving us 1890 = 42000r.  Using inverse operations, we divide both sides of the equation by 42000 to get 0.045 = r.  Since r = percentage rate, we need to multiply our decimal by 100 to find the percentage.  0.045 x 100 = 4.5%.

5 0
3 years ago
85.6 is what percent of 107 ?
Ipatiy [6.2K]

Answer: 91.592

Step-by-step explanation:

4 0
2 years ago
Solve by Factoring<br><br> 3b^4−6b^2+27b
Ganezh [65]

Answer:

Step-by-step explanation:

hello :

3b^4−6b^2+27b = 3b(b^3-2b+9)

8 0
2 years ago
16. Two golfers completed one round of golf. The first golfer had a score
bearhunter [10]

9514 1404 393

Answer:

  9

Step-by-step explanation:

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6 0
2 years ago
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