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nikitadnepr [17]
3 years ago
8

Bonnie invested $8,000 in two accounts paying 5% and 6% annual interest. Her money earned a total of $445 in interest in one yea

r. How much was invested in each account?
Business
1 answer:
polet [3.4K]3 years ago
5 0

Answer:

6% = 4500

5% = 3500

Explanation:

wo equations can be derived from the question

x + y = $8,000 equation 1

0.05x + 0.06y = $445. equation 2

x = amount invested in 5%  

y =  amount invested in 6%  

multiply equation 1 by 0.05

0.05x + 0.05y = 400 equation 3

subtract equation 3 from 2

0.01y = 45

y = $4500

substitute for y in equation 1

8500 - 4500 = 3500

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mylen [45]

Answer:

There is a 0.2419% for a foreman to earn either $1,100 or $900

Explanation:

We calculate the probability of a normal distribution of 0;1

(X-mean)/deviation = Z

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900 - 1,00/100 = -100/100 = -1

Given the zame Z value, we have the same probability of a foreman to earn 1,100 or 900

As we are asked for the foreman salary, wewill calcualte the Z for non cumulative, just the probability of a foreman to earn 1,100 or 900 dollars.

We look into the normal distribution table for the value of z = -1 or 1

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geniusboy [140]

The behavior of Albert is consistent with the law of demand.

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6 0
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