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Bogdan [553]
3 years ago
7

What is simple interest

Mathematics
2 answers:
hjlf3 years ago
8 0
This is from another website. <span>Simple interest is money you can earn by initially investing some money (the principal). A percentage (the interest) of the principal is added to the principal, making your initial investment grow!</span>
Fiesta28 [93]3 years ago
7 0
A simple interest is is a quick method of calculating the interest charge on a loan. The Simple interest is determined by multiplying the daily interest rate by the principal by the number of days that elapse between payments. I Hope This Helps .
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Phil has 3 times as many rocks as Peter. Together, they have 48 rocks. How many more rocks does Phil have than Peter?
andrezito [222]
x-Peter's\ rocks\\3x-Phil's\ rocks\\\\x+3x=48\\4x=48\ \ \ \ \ \ |:4\\x=12\\3x=3\cdot12=36\\\\36-12=24\\\\Phil\ have\ 24\ more\ rocks\ than\ Peter.
8 0
3 years ago
A company manufactures 2,000 units of its flagship product in a day. The quality control department takes a random sample of 40
shepuryov [24]

Answer:

B

Step-by-step explanation:

The recommended sample size n for point estimates is:

n = NX / (N + X - 1)

where N is the population size, and X is defined as:

X = Z² p (1 - p) / E²

where Z is the critical value, p is the sample proportion, and E is the margin of error.

Assume a confidence level of level of 95% and a margin of error of 5%.

α = 0.05, Z(α/2) = 1.96

E = 0.05

Of the 40 units tested, 2 had lifespans less than 26 days.  So the proportion is:

p = 2/40 = 0.05

Therefore:

X = (1.96)² (0.05) (1 - 0.05) / (0.05)²

X = 73

Given N = 2000:

n = (2000) (73) / (2000 + 73 - 1)

n = 70.45

Rounding, the recommended sample size is 70.

5 0
3 years ago
Read 2 more answers
Identify the percent of change as an increase or a decrease. 9 points to 4 points
padilas [110]

Answer:

55.55% decrease

Step-by-step explanation:

change\% =  \frac{final \: point \:  - initial \: point}{initial \: point \: value}  \times 100

In the question ,

Initial point value = 9

Final point value = 4

Change% = \frac{4 - 9}{9}  \times 100 =  \frac{ - 5}{9} \times 100 =  - 55.55\%

8 0
3 years ago
Do you know 2+9+4+2 if you do say it
velikii [3]

17is the answer for this

7 0
3 years ago
Read 2 more answers
Round 6.081 to the nearest hundredth
konstantin123 [22]

Answer: 6.08 or 6.080. Whatever

Step-by-step explanation:

The hundredths is where the 8 is. If u look to the right of the 8, is a one. So u keep the hundredths place the same.

3 0
3 years ago
Read 2 more answers
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