Answer: $31000 was loaned at 13%.
Step-by-step explanation:
Let x represent the amount loaned out at 13% interest rate.
Let y represent the amount loaned out at 5% interest rate.
The bank loaned out $68,000, part of it at the rate of 13% per year and the rest at a rate of 5%per year. It means that
x + y = 68000
The interest received made from $x in one year is
13/100 × x = 0.13x
The interest received made from $y in one year is
5/100 × x = 0.05y
If the interest received was $5880, it means that
0.13x + 0.05y = 5880- - - - - - - - - 1
Substituting x = 68000 - y into equation 1, it becomes
0.13(68000 - y) + 0.05y = 5880
8840 - 0.13y + 0.05y = 5880
- 0.13y + 0.05y = 5880 - 8840
- 0.08y = - 2960
y = - 2960/- 0.08
y = 37000
x = 68000 - y = 68000 - 37000
x = $31000
Answer:
m > 50,000
This means the money, m, will be greater than 50,000
Answer:
B, C, D
Step-by-step explanation:
plz mark me as brainliest
Answer:
x = 7
Step-by-step explanation:
Question:
The sample mean foot length of a simple random sample of 25 third-graders is 22.5 cm. The standard error of the mean is 0.8 cm. Which one of the following is a correct interpretation for the standard error of the mean?
The typical distance between each individual foot length in the sample and the sample mean foot length is approximately 0.8 cm.
The typical distance between one sample mean foot length and another sample mean foot length is 0.8 cm.
The typical distance between each individual foot length in the population and the true mean foot length is approximately 0.8 cm.
The typical distance between means of samples of size 25 and the population mean foot length is approximately 0.8 cm
The typical distance between each individual foot length in the sample and the true mean foot length is approximately 0.8 cm.
Answer:
The correct option is:
The typical distance between means of samples of size 25 and the population mean foot length is approximately 0.8 cm
Step-by-step explanation:
The standard error of the mean is a measure of the extent of variation of the mean in a sample of data from that of the value of the mean within the general population. It is a statistical measure of the probability that the size of a particular sample will approach that of the population mean, with reference to the principle of the central limit theorem.
Therefore, the interpretation of the standard error is that the variation between mean in a sample of 25 and that of the population is about 0.8 cm.