Answers
Let’s start with mean:
To solve for the mean add all the numbers up and then divide by the amount of values there are.
Ex. 1,3,4, and 5
you would add those numbers up and divide by 4 considering there are 4 values.
Next up is median:
To solve for median you need to order the numbers from least to greatest and find the middle number. That is your median. I like to remember the median by this- when driving that center divider is called the median. So you know the median is the middle or center number. If you don’t have an even set of numbers simply take the two middle numbers, add them together and divide them by two.
Mode is simple:
Find the number that repeats itself most often. If your data set is 1, 2, 3, 2, and 5 your mode is 2 because it appears most frequently throughout the data set. Hope this helps!
To commute the mean of this years test, add all the numbers up, and divide the sun of the numbers by the amount of numbers added together.
To commute the mode of this years test find the number that is used the most frequent in the statistics.
To commute the median of this years test, order the numbers from least to greatest and from both sides mark off one individual number on both sides until you reach the middle number
Ex. of median:
3,4,9,12,37,37,98,128,146,198
So you would have to medians, 37 and 37, so in this instance add the 37 and 37 together and divide it by two because you added two numbers
The median of these numbers would be 37 because 74 divided by two is 37.
So once you have calculated the mean median and mode for this years, do the same process but for ten years ago.
Then compare differences.
Related Questions
50 points please help asap
Answers
Answer: 5 blue marbles than 3 green marbles. Than 3 green on top/5 red on bottom.
Step-by-step explanation:
For every 3 green marbles there are 5 blue marbles.
Answer:
For every 3 green marble there are 5 blue marbles.
Step-by-step explanation:
8.3.4 Karl bought five folders from Pay-A-Lot at a cost of $2.50 each. Pay-A-Lot had a 20% -off sale the following day. How much could Karl have saved on the purchase by waiting a day?
Answers
Answer:
Karl could have saved $2.50
Step-by-step explanation:
Cost of folders without the sale: 2.5*5 = $12.50
Cost of folders with the sale: 0.8*2.5 = $2 per folder * 5 folders = $10.00
Difference between prices: 12.5-10 = $2.50
Answer:
2.50$ Karl could have saved on the purchase by waiting a day.
Step-by-step explanation:
Given: total number of folders Karl bought is 5 .
The cost of each folder is 2.50$.
20% off sale the following day at Pay-A-Lot.
we have to find the 20% of each folder and then add them to get the final saving of Karl if he had waited for a day.
Step 1 of 2
20% of 2.50$ is equal to
[tex]$$\begin{aligned}&=2.50 \cdot 20 \% \\&=2.50 \cdot \frac{20}{100} \\&=0.50 \$\end{aligned}$$[/tex]
this is the amount Karl would save on each folder if waited for a day or this is the discount on the amount of 2.50$ that the shopkeeper will give the next day on each
Step 2 of 2
Karl bought 5 folders
so, total savings would be equal to
[tex]$$\begin{aligned}&=5 \cdot 0.50 \\&=2.50 \$\end{aligned}$$[/tex]
8.46 If 100 is decreased by a% and the result is decreased by b%, then what is the total percent decrease (in terms of a and b)? (You can assume that both a and b are between 0 and 100.)
Answers
Answer:
The total percent decrease is [tex]$a+b-\frac{a b}{100}$[/tex]
Step-by-step explanation:
We are given with a word problemWe are asked to find the total percentage decreaseWe can do this in two stepsStep 1: Finding the two percentage decrease
Step 2: Finding their difference
Step 1 of 2
Let the decrease by a% be 100-a
Then b% decrease is
[tex]$$\begin{aligned}\frac{b}{100} \times(100-a) &=\frac{100 b-a b}{100} \\\frac{100 b}{100}-\frac{a b}{100} &=b-\frac{a b}{100}\end{aligned}$$[/tex]
Step 2 of 2
The percentage difference between the two percentages is,
[tex]$$\begin{aligned}&(100-a)-\left(b-\frac{a b}{100}\right)=100-a-b+\frac{a b}{100} \\&100-a-b+\frac{a b}{100}=100-\left(a+b-\frac{a b}{100}\right)\end{aligned}$$[/tex]
Since 100 is the total percent [tex]$a+b-\frac{a b}{100}$[/tex] is the percentage decrease.
If data for the topics below were collected and displayed in a frequency table, which topic would most likely need to be shown in intervals?
(A) favorite food
(B) heights of trees
(C) eye color
(D) foot length of newborn babies
Answers
move the dot -(-D) on the number line
Answers
Answer:
the answer is 1/2
Step-by-step explanation:
-(-D) = -(-1/2)
2 negatives make a positive so it would be 1/2 or in other cases, 0.5
D= -1/2
So -(D)= 1/2
Then -(1/2)= -1/2
8.42 Three bags of jelly beans contain 26,28 , and 30 beans. In each bag, the percent of the beans that are yellow is 50%, 25%, and 20%, respectively. All three bags of candy are dumped into one bowl. What percent of the beans in the bowl are yellow? Round your answer to the nearest integer.
Answers
Answer:
Step-by-step explanation:
Figure out the number of yellow beans in each bag:
Bag A: 0.5*26 = 13 beans
Bag B: 0.25*28 = 7 beans
Bag C: 0.2*30 = 6 beans
The total number of beans in the bowl: 26+28+30 = 84
Total number of yellow beans: 13+7+6 = 26
Percentage of yellow beans: 26/84 *100 = 30.9523
Rounded answer: 31%
Answer:
The percentage of yellow beans in the bowl of 84 is approximately 31%.
Step-by-step explanation:
We are given with a word problemWe are asked to find the total percentage of yellow jelly beans We can do this two stepsStep 1: Finding the number of yellows beans in each bags
Step 2: Finding the total percentage of yellow beans
Step 1 of 2
We are given that the three bags contain 26,28 and 30 beans totally in which the percent of yellow beans are 50%, 25% and 20% respectively.
We have to find the number of yellow beans in each bag.
[tex]$=\frac{50}{100} \times 26$$[/tex]
The number of yellow beans in first bag
[tex]$$\begin{aligned}&\frac{1}{2} \times 26=13 \\&=\frac{25}{100} \times 28\end{aligned}$$[/tex]
The number of yellow beans in second bag
[tex]$$\begin{aligned}&\frac{1}{4} \times 28=7 \\&=\frac{20}{100} \times 30 \\&\frac{1}{5} \times 30=6\end{aligned}$$[/tex]
The number of yellow beans in third bag
Step 2 of 2
From the first step we got the number of yellow beans in each bags.
The total number of yellow beans in the bowl =13+7+6
The total number of beans in the bowl
[tex]$$\begin{aligned}=26 &+28+30 \\=& 84 \\&=\frac{26}{84} \times 100\end{aligned}$$[/tex]
The percentage of yellow bean in the bowl
[tex]$$\begin{gathered}\approx 0.3095 \times 100 \\\approx 0.31 \times 100 \\\approx 31\end{gathered}$$[/tex]
Write the percent as a decimal.
15. 166%
Answers
don’t know why this needs to be 20 characters but we’ll make it
8.37 Sale prices at the Ajax Outlet Store are 50% below original prices. On Saturdays, an additional discount of 20% off the sale price is given. What is the Saturday price of a coat whose original price is $180?
Answers
Answer:
Given:
Sale prices at the Ajax Outlet Store are 50% below the original prices. On Saturdays, an additional discount of 20% off the sale price is given.To find:
The Saturday price of a coat whose original price is $180.The formula used to calculate the percentage is (value/total value)*100%.
Step-by-step explanation:
Step 1 of 2
The original price of coat = $180
Ajax always sells at 50% discount
So their sale price = $90
Step 2 of 2
On Saturdays they sell 20% less
Which implies-
1/5*90 = 18
90-18=72
They sell at $72 on Saturday.
9000/100=90
90*20=1800
1800/100=18
90-18=72
The Saturday sale price of the coat would be $72.
Write the following in algabraic expression: the sum of the number a and three times the square of the number b
Answers
Answer:
a+3b^2
Step-by-step explanation:
7.6.3. A kangaroo chases a rabbit that starts 150 feet ahead of the kangaroo. For every 12 -foot leap of the kangaroo, the rabbit makes a 7 -foot leap. How many leaps will the kangaroo have to make to catch up to the rabbit if the two animals always leap at the same time?
Answers
Answer:
The number of leaps will the kangaroo have to make to catch up to the rabbit if the two animals always leap at the same time is 30 times.
Step-by-step explanation:
Given:
A kangaroo chases a rabbit that starts 150 feet ahead of the kangaroo.
For every 12 -foot leap of the kangaroo, the rabbit makes a 7 -foot leap.
Find:
the number of leaps will the kangaroo have to make to catch up to the rabbit if the two animals always leap at the same time
Step 1 of 1
The kangaroo gains 5 feet on every leap.
The kangaroo must gain 150 feet total,
so it must jump [tex]\frac{150}{5}=30$[/tex] times to catch the rabbit.
Kangaroo needs 30 leaps to make to catch up to the rabbit if the two animals always leap at the same time.
What is an equation?Two algebraic expressions having same value and symbol '=' in between are called as an equation.
Given:
A kangaroo chases a rabbit that starts 150 feet ahead of the kangaroo.
For every 12 -foot leap of the kangaroo,
the rabbit makes a 7 -foot leap.
Let n be the number of leaps.
According to the question:
We have the equation.
To solve for x;
12x = 7x + 150
12x - 7x = 150
5x = 150
x = 150/5
x = 30
Therefore, the Kangaroo needs 30 leaps to catch the rabbit.
To learn more about the equation;
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A camera usually sells for $68. Because it was slightly damaged, it sold for $59.90, what was the rate of the discount to the NEAREST PERCENT?
Answers
Which of the coordinate pairs below are separated by a vertical distance of greater than 5 units? Select all that apply.
A)(-1, −52) and (-1, −32)
B) (1.8, -3.4) and (1.8, 2.2)
C) (-3.5, -4.2) and (-3.5, 1.3)
D) (4, 5) and (4, 1)
Answers
Answer: A
Step-by-step explanation:
A. yes because -52 and -32 are separated by a distance of 20 units
B. no because -3.4 and 2.2 are not separated by more than 5 units
C. no because -4.2 and 1.3 are not separated by more than 5 units
D. no becasue 5 and 1 are not separated by more than 5 units
Answer:
A, B, C
Step-by-step explanation:
A coordinate is written as (x, y) where:
x is the horizontal distance of the point from the origin.y is the vertical distance of the point from the origin.For a pair of coordinates to be separated by a vertical distance of greater than 5 units, the difference in their y-values should be greater than 5. To find the difference between two values, subtract the smaller value from the larger value.
A. (-1, -52) and (-1, -32)
Difference in y-values: (-32) - (-52) = 20
B. (1.8, -3.4) and (1.8, 2.2)
Difference in y-values: (2.2) - (-3.4) = 5.6
C. (-3.5, -4.2) and (-3.5, 1.3)
Difference in y-values: (1.3) - (-4.2) = 5.5
D. (4, 5) and (4, 1)
Difference in y-values: 5 - 1 = 4
Therefore, coordinate pairs A, B and C are all separated by a vertical distance of greater than 5 units.
Determine whether it’s a change in increase or decrease then find the person, make sure to ROUND to nearest whole percent:
ALSO THE ANSWER IS NOT 182%
1994 cost: $171.33 and 1995 cost: $201.59
Answers
Answer:
it is 82%
Step-by-step explanation:
Write A story that could represent This problem 2/6 x 3/4
Answers
Answer:
Bob at the store
Step-by-step explanation:
Bob is at a store and wants to buy a banana, last time he checked it costed 2/6 of a dollar. Now it costs 3/4 times more.
Write the percent as a decimal. 8. 55%
Answers
Answer:
0.0855
hope this is helpful!
f(x)=(5x+3)(x−2)(3x+7)(x+5) has zeros at x = -5, x = -7/3, x = 2
What is the sign of f on the interval -7/3 < x < -3/5?
Answers
The sign of f on the interval -7/3 < x < -3/5 is always positive.
How to solve for the sign on the intervalWe have the equation
(5x+3)(x−2)(3x+7)(x+5) > 0
Now when f(x) > 0
Then -7/3 < x < -3/5
This would tell us that the sign would become positive when it changes from the less than to greater than sign
Complete Questionf(x)=(5x+3)(x-2)(3x+7)(x+5) has zeros at x=-5, x=-7/3, x=-3/5, and x=2
What is the sign of f on the interval -7/3<x<-3/5?
answer choices
f is always positive on the interval
f is always negative on the interval
f is sometimes positive and sometimes negative on the interval
f is never positive or negative on the interval
Read more on polynomials here:
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On a snowy day 85% of the students of Wilson high school were present. If 572 of the students were present, how many students were enrolled at the school?
Answers
Answer:
673
Step-by-step explanation:
okay so uh this is my way and the answer works so like yea teachers dont show like this but ii figured this works
okay so
85/100 = 572/?
so if you divide 85 by 85 its gonna equal 1 and 1 times 100 is gonna be 100
useing the same concept, it should be the same with 572 , but instead of divideing by 572, divide by 85.
basically 572/85
okay now thats gonna give you 6.72941176471 thats vasically 1% of the population.
so multiply 6.72941176471 * 100
so now you have
672.941176471 and you can round this to 673 kids.
and you know its right since 85% of 673 is 572.05 and you can sound to 572
Answer:
673 students
Step-by-step explanation:
Divide the number of students who applied and the decimal of the percentage they represent.
85% = 85/100 = 0.85
572/.85 = 673
Hope this helps
7. 1 bag of beans weighs 0.7 lb. What is the weight in pounds of 2.5 bags of beans?
Answers
1.75 lbs
Explanation:
0.7 lb (one bag) multiplied by 2.5 (amount of bags) is equal to 1.75 lbs
Evaluate.
4 to the power of 3 + (-2) to the power of 4
Answers
Answer:
4
Step-by-step explanation:
3+(-2) is the same as 3-2 which is 1. and since with multiple exponents you work from the top you have 4 to the power of 1^4. 1^4 is 1, so it's 4^1, which is 4.
Write each ratio as a fraction in lowest terms:
Q1 - 24.8 to 13.4
Q2 - 1.5 to 4.5
Answers
Answer:
124/67 and 1/3
Step-by-step explanation:
The second ratio is 1.5/4.5, which readily reduces to 1/3.
Dividing both numerator and denominator of 24.8 / 13.4 by 2 yields the simpler 12.4 / 6.7 or 124/67. This latter result cannot be reduced.
Find the answers for the frequency and relative frequency tables below.
PLEASE ANSWER ALL 3 QUESTION, thank you
Answers
6.) Write an addition expression to describe skateboarding
situation. Then determine the sum.
Hank starts at the bottom of a half pipe 6 feet below street
level. He rises 14 feet at the top of his kickturn.
Answers
first it was 6 feet and then he rises 14 more. pretty simple :)
Answer:
-6 + 14 = 8
Step-by-step explanation:
Hank starts at 6 feet below street level. He rises 14 feet at the top of his kickturn.
Compare these three ratios using fractions.
3 to 2 5:6 8 to 12
Think about the steps you could take to compare the ratios using fractions.
The first step is to write the ratios as fractions.
The next step is to use a
to rewrite the fractions.
Finally, compare the
to help you order the ratios.
Answers
Answer:
i think it would be greatest common factor
Step-by-step explanation:
find the solution B=√2+√3-√2-√3
Answers
Answer:
[tex]B=\sqrt{2}[/tex]
Step-by-step explanation:
Original equation:
[tex]B = \sqrt{2+\sqrt{3}} - \sqrt{2 - \sqrt{3}}\\[/tex]
Square both sides:
[tex]B^2=(\sqrt{2+\sqrt{3}})^2 + 2(\sqrt{2+\sqrt{3}} * (-\sqrt{2 - \sqrt{3}}) + (-\sqrt{2-\sqrt{3}})^2[/tex]
Cancel out the square roots and squares:
[tex]B^2=2+\sqrt{3}}+ 2(\sqrt{2+\sqrt{3}} * (-\sqrt{2 - \sqrt{3}}) + 2-\sqrt{3}[/tex]
Add the sqrt(3) and -sqrt(3) as well as 2 and 2
[tex]B^2=4 + 2(\sqrt{2+\sqrt{3}} * (-\sqrt{2 - \sqrt{3}})[/tex]
Use the identity: [tex]\sqrt{a} * \sqrt{b} = \sqrt{a * b}[/tex] to rewrite the two square roots being multiplied:
[tex]B^2=4 + 2(-\sqrt{(2+\sqrt{3}) * (2 - \sqrt{3}}))[/tex]
Use difference of squares: [tex](a-b)(a+b) = a^2-b^2[/tex]
[tex]B^2=4 + 2(-\sqrt{2^2-\sqrt{3}^2})[/tex]
Square both sides
[tex]B^2=4 + 2(-\sqrt{4-3})[/tex]
Subtract:
[tex]B^2=4 + 2(-\sqrt{1})[/tex]
Evaluate square root of 1:
[tex]B^2=4 + 2(-1)[/tex]
Multiply
[tex]B^2=4 -2[/tex]
Subtract
[tex]B^2=2[/tex]
Take square root of both sides:
[tex]B=\sqrt{2}[/tex]
15. The cost of one yard of fabric is $7.99. What is the cost of 0.51 yd of fabric correct to 2 decimal places?
Answers
Answer:
Step-by-step explanation:
1 yard = $7.99
0.51 yard = x
cross multiply
1 (x) = ($7.99 × 0.51)
1 (x)/1 = 4.0749/1
x = 4.07
Write an equation showing the relationship between the number of baskets (b) made from outside the three-point line and the number of points scored (p).
Answers
p is the total number of points scored. Since there are 3 points being scored, you multiply that by the number of baskets made, b.
P(points scored) 3(three point line) B(baskets)
You randomly choose one of the tiles above. Without replacing the first tile, you randomly choose a second tile. Find the probability of the compound event.
22. Choosing a red tile and then a vowel
Answers
Answer:
none
Step-by-step explanation:
Please dunk hii to
15. The total mass of 6 similar bags of salt is 4.5 kg. What is the mass of each bag of salt rounded to 1 decimal place? Give the answer in kilograms.
Answers
Answer:
0.7kgStep-by-step explanation:
Total mass of the bags of salt = 4.5kgnumber of bags of salt = 6To find the mass of each bag of salt, we divide the total mass by the number of salt bags we have which is 6Therefore 4.5 ÷ 6 = 0.75 KgMass of each bag of salt = 0.75 Kg0.75Kg rounded to ONE decimal place = 0.7 KgHope this helps.Good luck ✅.6 divided by 4.5 is 0.7 kg
One of the angles in a right triangle is 20°. A median, an angle bisector, and a height are all drawn from the right angle.
a)Find the angle measure between the median and angle bisector.
b)Find the angle measure between the angle bisector and the height.
Answers
Answer: I would say A
Step-by-step explanation: The reason I say A is because One to find the angle you have to add( Okay I'm in 8th grade and My brain is slow so please don't judge) but maybe try adding and doing division? I'm not sure
yeah it’s urjhedejek
8.45 At some point in the season, the Unicorns had won 60% of their basketball games. After that point, they won 8 more games and lost 2 , to finish the season having won 65% of their games. How many games did the Unicorns play during the season?
Hint: Assign a variable.
Answers
Answer:
The total number of games won by Unicorn is 40.
Step-by-step explanation:
We are given with a word problemWe are asked to find the number of unicorns played during the seasonWe can do this in two stepsStep 1: Finding the win percentage
Step 2: Finding the number of unicorns played during the season
Step 1 of 2
Let the number of games played by unicorn be x.The unicorn won 60% of the first x-10 games That is [tex]$\frac{60}{100} \times(x-10)$[/tex]
Combining the 8 games we get,
[tex]$$\begin{gathered}\frac{60}{100}(x-10)+8=\frac{60}{100} \times x-\frac{60}{100} \times 10+8 \\0.6 x-6+8=0.6 x+2\end{gathered}$$[/tex]
Step 2 of 2
The unicorn totally won 65% of the games played.
That is [tex]$\frac{65}{100} \times x=0.65 x$[/tex]
Equating both the equation gives
[tex]$$\begin{gathered}0.6 x+2=0.65 x \\2=0.65 x-0.6 x \\2=0.05 x \\\frac{2}{0.05}=x \\40=x\end{gathered}$$[/tex]