Answer: he invested $15000 in part 1 and $60000 in part 2
Step-by-step explanation:
Let x represent the amount of money invested in part one.
Let 4x represent the amount of money invested in part 2 .
Total amount of money invested in part 1 and part 2 is
x + 4x = 5x
The formula for simple interest is expressed as
I = PRT/100
Where
P is the principal or initial amount.
T is the duration in years
R is the number rate.
For part 1
R = 7%
T = 1 year
P = x
I = (x × 7 × 1)/100 = 0.07x
For part 2,
R = 11%
T = 1 year
P = 4x
I = (4x × 11 × 1)/100 = 0.44x
if the total annual income from interest is 7650. This means that
0.44x + 0.07x = 7650 - - - - - - - -2
0.51x = 7650
x = 7650/0.51
x = 15000
Amount invested in part 1 is $15000
Amount invested in part 2 is 4×15000 = $60000
HIS walking rate was 1 mile per hour because 20min times 3 is 1 hour, and 1/3 times 3 is 1 mile thus 1mph if can plz mark brainliest
You have the comma in the wrong place.
It's 4,000,000 NOT 4000,000.
Round[4,000,000, 10]
Answer: 4 million
Answer:
$214
Step-by-step explanation:
selling price= $107,000
subtract 10%down payment
107,000- (107,000*.1)
107,000-107,00
96,300
Interest rate= 8%
Annual payment= 96,300* 0.08
$7704
per month payment= 7704/12
$624
payment on closing only for 10 days
642*(10/30)
$214
Using the z-distribution, the 95% confidence interval of the population mean is: (17.5, 24.5).
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
is the sample mean.
is the standard deviation for the population.
In this problem, we have a 95% confidence level, hence
, z is the value of Z that has a p-value of 
, so the critical value is z = 1.96.
For this problem, the other parameters are:
Hence the bounds of the interval are:
The interval is: (17.5, 24.5).
More can be learned about the z-distribution at brainly.com/question/25890103
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