Katie gives Maggie half of her pencils. Maggie keeps 5 pencils and gives the rest to jamil. Write an expression for the number of pencils Maggie gives to jamil
Answers
Answer:
Y=( x/2 )- 5
Where y is the number of pencils given to Jamil and 5 is the one kept by Maggie.
Step-by-step explanation:
Let's call the number of Katie pencil (x ).
So Katie gave half of her pencils to Maggie.(1/2x)
So Maggie keeps five pencils and give the rest to Jamil.
So
X/2 = 5 + y
Where y is the number of pencils given to Jamil and 5 is the one kept by Maggie.
Y=( x/2 )- 5
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In manufacturing processes, it is of interest to know with confidence the proportion of defective parts. Suppose that we want to be reasonably certain that less than 4% of a company's widgets are defective. To test this, we obtain a random sample of 250 widgets from a large batch. Each of the 250 widgets is tested for defects, and 6 are determined to be defective, based upon the manufacturer's standards. Using α = 0.01, is this evidence that less than 4% of the company's widgets are defective? State the hypotheses, list and check the conditions, calculate the test statistic, find the p-value, and make a conclusion in a complete sentence related to the scenario.
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Answers
Answers
first we get the numbers less than 2 are (1)
secondly get the numbers greater than 7 are (8,9,10)
total = 4 numbers
The favorable probability is 4 / 10=2 / 5
hope it helps
Answer:
Step-by-step explanation:
There are 10 total outcomes [numbers from 1 to 10]
What are the numbers that are LESS THAN 2 or GREATER THAN 7?
They are 1, 8, 9, and 10.
That's a total of 4 numbers. Also, total numbers is 10. Hence the probability of obtaining numbers that are less than 2 or greater than 7 is:
Simplifying gives us a probability of
Answers
Final answer:
The exponential growth rate is approximately 1.56% per year for a population to double in 45 years.
Explanation:
To calculate the annual growth rate for a population that doubles in a specific time period, we can use the rule of 70, which is a formula for estimating the time it takes for an investment or population to double given a constant growth rate. The rate of growth (r) can be calculated as r=70/t, where t is the time in years.
In this case, the country's population doubled in 45 years. So, the annual growth rate would be r=70/45
= 1.56%.
Therefore, the exponential growth rate that caused the country's population to double in 45 years is approximately 1.56% per year.
Learn more about Exponential Growth Rate here:
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rectangular prism of length 45 centimeters, width
30 centimeters, and volume 81,000 cubic centimeters.
What is the height, in centimeters, of the box?
A. 75
B. 60
C. 48
D. 27
E. 18
Answers
81,000 = (45) x (30) x (height)
Height = (81,000) / (45 x 30) = 60 cm
V=Ab *h
Ab=L*w
Ab=45*30
Ab=1350cm²
V=1350*h
1350*h=81 000
h=81 000/1 350
h=60cm answer variant b)
how help
Answers
Answer: 0
Step-by-step explanation:
8w + 5 = 4(2w + 1)
Expand the Left-hand side of the equation:
8w + 5 = 8w + 4
Now solve:
8w - 8w = 4 - 5
0w = -1
w = 0
A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of a blue marble, replacing it, and then picking a black marble? 8/75 4/45 1/9
Answers
The probability of pulling a blue marble from the full bag is 6/15 .
The probability of pulling a black marble from the full bag is 4/15 .
The probability of both events happening is
(6/15) x (4/15) = 24/225 = 8/75