Final answer:
Sarah estimated that she could make at least 4,000 bracelets from 214 bags of beads by simplifying the calculation to 200 bags with enough beads for 20 bracelets each. Her estimate was conservative, as the calculation of 214 bags multiplied by 22 bracelets per bag totals 4,708 bracelets, which is greater than her estimate.
Explanation:
To critique Sarah's reasoning, we need to compare her estimate with the actual number of bracelets that can be made with the beads she has. She has 214 bags of beads, each with enough beads for 22 bracelets. To find the actual number of bracelets possible, we multiply the number of bags by the number of bracelets each bag can make:
214 bags × 22 bracelets per bag = 4,708 bracelets.
Sarah estimated that there were enough beads for at least 4,000 bracelets, based on the approximation that 200 bags with enough beads for 20 bracelets each would yield 4,000 bracelets. Although her estimation method simplifies the calculation by rounding down to manageable numbers, the actual total (4,708 bracelets) is greater than her estimate. By using this estimation method, Sarah has effectively ensured she will have more than enough beads for her classes, as her estimate is lower than the actual number.
If you divide the number of elements in a sample with a specific characteristic by the total number of elements in the sample, the dividend is the:
Write the equation in standard form of the circle with radius 5 and center 0,3
will give BRAINEST
Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution?
what is the equation of the line in slope intercept form m=2/7 and the y intercept is (0,-12)
A y=2/7x +12
B y=2/7x -12
C y=13x-2/7
D y=12x +2/7
B is your answer! All you do for this equation is go oh look m=2/7 well this means y=2/7x and you have a -12 so than you just plug it in. To get y=2/7x-12
What is the value of n?
9×27+2×31-28= n
n=277
Hope this will help!
A concrete walk of uniform width is to be laid around a rectangular flower bed that is 60 feet long and 30 feet wide. If the area of the walk is to be 279 square feet, what is the width of the walk?
You are deciding between two cell phone plans. Plan A: Unlimited text, talk, and data for $50 per month. Plan B: Unlimited text and data and 100 minutes of talk for $40, plus $0.20 per minute of talk after 100 minutes. At how many minutes of talk are the plans equal?
Two or more expressions with an equal sign is called as Equation. If Plan A: Unlimited text, talk, and data for $50 per month. Plan B: Unlimited text and data and 100 minutes of talk for $40, plus $0.20 per minute of talk after 100 minutes. Then after 150 minutes plan A and plan B are equal.
What is Equation?Two or more expressions with an equal sign is called as Equation.
Given that,
Plan A: Unlimited text, talk, and data for $50 per month.
Plan B: Unlimited text and data and 100 minutes of talk for $40, plus $0.20 per minute of talk after 100 minutes.
We need to equation plan A and plan B
Plan A= Plan B
50=40+0.20(m-100)
Use distributive property on Right hand side
50=40+0.20m-20
Subtract 20 from 40 on right hand side
50=20+0.20m
Subtract 20 on both sides
30=0.20m
Divide both sides by 0.20
150=m
Hence After 150 minutes of talk Plan A and Plan B are equal.
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A scientist mixes water (containing no salt) with a solution that contains 40% salt. She wants to obtain 200 ounces of a mixture that is 5% salt. How many ounces of water and how many ounces of the 40% salt solution should she use?
The scientist should use 100 ounces of water and 20 ounces of the 40% salt solution to make 200 ounces of a mixture that is 5% salt.
What is percentage?
A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
The concepts of counting are permutation and combination, and they are used in a variety of contexts. A permutation is a list of the various configurations that can be created from the given set of items. Details are crucial in permutation because the order or sequence is crucial. The order in which the names of the three countries are written matters, whether they are written as "USA, Brazil, Australia" or "Australia, USA, Brazil" or "Brazil, Australia, USA." When combined, the names of three nations form a single unit, regardless of their chronological order
If it's 5 percent salt, 5 percent = 0.05 and 0.05*200=10 (which is 5% of 200), therefore showing us that we need 10 ounces of salt. From a 40% solution (0.4), we need to figure out how many times 0.4 goes into 10, which is 10/0.4=25, showing us that we need 25 ounces of the salt solution. 200-25=175 ounces left for water
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Find the area of a right triangle with sides 10.0 cm , 24.0 cm , and 26.0 cm . express your answer with the correct number of significant figures.
Koen works at the Middletown Cafe. This week he served a table a meal costing $53.69 and received a 15% tip. He received a tip of ____.
I really need help on this
Evaluate the expression for the given values.
mx−y when m=1, x=5x=5, and y=2
Enter your answer in the box.
Gary made 20 treat bags for his Halloween party. In every 3rd bag he put lollipops, in every 4th bag he put Hershey Kisses and in every 5th bag he put fake eyeballs. How many of the 20 bags have all three items in them? ( By the way this is an LCM problem. I need help asap plz.)
Why is it helpful to write a number as a product of primes?
find the estimate for 4.185 divided by 0.93
5.01×10 to the third power in standard form
a runner is training for a half marathon
.
The student's question refers to various aspects of marathon running, including physiological processes, muscle fiber types, the effect of footwear on performance, and scientific measurements of marathon results.
Explanation:The topic touches upon various aspects such as the physiological responses of marathon runners, the biomechanics of running, the influence of different shoe brands on run times, and scientific measurements of performance during a marathon.
For example, marathon runners demonstrate responsiveness and movement, two characteristics of living humans. Anatomic structures and physiological processes play a critical role in coordinating muscle action and managing internal body temperature through sweating. Additionally, the type of muscle fibers, such as slow-twitch fibers, can affect a runner's endurance, as seen in athletes with a high proportion of these fibers.
Another aspect to consider is the impact of footwear on run times. A marathon runner looking into the relationship between shoe brand and performance would examine the data collected from various runners to determine if there's any significant difference.
The sides of a square bedroom measure 3.5 yards. If carpet costs $16 per square yard, how much will it cost to cover the floor?
A. $56
B. $98
C. $196
D. $224
Answer:
ITS NOT A) $56
Step-by-step explanation:
I took the test! GOOD LUCK!
how to solve 324.65 x 0.2
The campsite is square in shape and has a length of 65 metres.
What is the area of the campsite?
Which expression represents the number of possible combinations of n items taken r at a time?
Answer:
[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]
Step-by-step explanation:
Given :Total items = n
Items taken at a time = r
To Find: Which expression represents the number of possible combinations of n items taken r at a time?
Solution:
We will use combination over here.
[tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]
Now Total items = n
Items taken at a time = r
Thus expression represents the number of possible combinations of n items taken r at a time is [tex]^nC_r=\frac{n!}{r!(n-r)!}[/tex]
Evaluate the following expression...
Which one of the following statements about quadrilaterals is true?
A.) A quadrilateral with only one set of parallel sides is a square.
B.) A quadrilateral with a right angle is a rhombus.
C.) A quadrilateral with two pairs of parallel sides is a trapezoid.
D.) A parallelogram with a right angle is a rectangle.
Answer:its c
Step-by-step explanation:
I got the answer wrong and the right answer was c so there yall
What is the quotient of 0.8449 ÷ 0.71?
Part A: Find a rational number that is between 9.5 and 9.7. Explain why it is rational.
Answer:
9.6
Step-by-step explanation:
It is rational because it has terminating decimal expansiom
-2(x-3)+5x+7=3(4-3x)+12x-9
Of Bernie's insect collection, 15 out of 25 insects are butterflies. Which of the following is not another way of expressing 15 out of 25?
A 3/5
B 0.6
C 60%
D 5/3
Option D (5/3) is not another way of expressing 15 out of 25 because it is greater than one and not equivalent to the simplified fraction 3/5, decimal 0.6, or percentage 60% which are all representations of the original fraction.
The student's question asks which of the following expressions is not another way of expressing 15 out of 25 insects being butterflies. To find out, we need to simplify the fraction and convert it into different forms.
Let's begin by simplifying the fraction 15/25. We can divide both the numerator (15) and the denominator (25) by their greatest common divisor, which is 5:
15 ÷ 5 = 325 ÷ 5 = 5So the fraction reduces to 3/5. Now let's see if the other options given correspond to this fraction:
3/5: This is the simplified form of 15/25.0.6: If we divide 3 by 5, we get 0.6, which means this choice represents the same value.60%: Convert the fraction 3/5 to a percentage by multiplying by 100 (3/5 x 100 = 60%) so this choice also represents the same value.5/3: This fraction is more than one (1) and is not equivalent to 3/5 or 15/25.Therefore, Option D (5/3) is the correct answer because it is not another way of expressing 15 out of 25.
Compare the values of the two 8s in the number 467882
The two 8s in the number 467882 have different values based on their positions. The first 8 is worth 80 while the second 8 is worth 8.
Explanation:The number 467882 has two 8s. The first 8 is in the tens place and the second 8 is in the ones place. The value of the first 8 is 8 times the value of the place it is in (or 8 x 10 = 80). The value of the second 8 is 8 times the value of the place it is in (or 8 x 1 = 8).
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3) Linda started taking piano lessons. She had to practice 1 3/4 hours each day. If after only 8 days Linda decided she wanted to stop, how many hours did she take lessons?
Suzanne can read 1 page in 3 minutes. How many pages can she read in 5 hours?