What we know:
I = Invest (so we dont mess up on interest.)
So, I = $7,000
First Account is 4%
Second Account is 2%
End of the year David Earns $476 in interest
With percent's you can always turn them into a decimal.
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The Question: How much was in each account?
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Step by Step Answer:
I = amount invested at 4%
4% = 0.40
8% = 0.80
0.40 - $7,000 = 6999.6
0.80 - 6999.6 = 6998.8
6998.8 - 476
Amount in both accounts in total is 6522.80.
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HOPE THIS HELPS! =3
HAVE A FANTASTIC DAY!
Answer:
Here is the answer
Step-by-step explanation:
That will show you.
Looks like the PMF is supposed to be

which is kinda weird, but it's not entirely clear what you meant...
Anyway, assuming the PMF above, for this to be a valid PMF, we need the probabilities of all events to sum to 1:

Next,





If

, then

, where we take the positive root because we know

can only take on positive values, namely 1, 2, and 5. Correspondingly, we know that

can take on the values

,

, and

. At these values of

, we would have the same probability as we did for the respective value of

. That is,

Part (5) is incomplete, so I'll stop here.
Answer: 3(2 • (2x))
Explanation:
6 • 2(3x)
6 • 6x
3(2 • (2x))