Answer:
x=4,y=5/2 or (4,5/2) depending on the type of answer you need .
Step-by-step explanation:
Answer:
Step-by-step explanation:
Lily likes to collect records. Last year she had 10 records in her collection. Now she has 13 records. What is the percent increase of her collection?
Answer:
30%
Step-by-step explanation:
We know if we put the number of records in the end ÷ the number of records previously, we can get the percentage change.
13/10 = 1.3
1.3 - 1 (Because we want to find the increase, not the amount of percentage this is to that)
0.3 = 3/10 = 30%
helpppppppppppppppppp
The Lesson Activity will help you meet these educational goals:
Content Knowledge—You will recognize statistical questions and examine the habits of data collected to answer them.
Mathematical Practices—You will construct viable arguments and analyze the reasoning of others.
STEM—You will grow in your understanding of mathematics as a creative human activity.
21st Century Skills—You will use critical-thinking and problem-solving skills and collaborate with others.
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work.
Activity
Part A
For his class survey, Walden chose the question, How many people live in your home, including yourself? He asked his friend Drake to help him with the survey. Walden asked 10 students in his class the question, and Drake posed the same question to 10 more students in their class.
Based on the responses, they wrote these data sets:
Walden’s data set: 2, 2, 2, 3, 3, 3, 3, 4, 4, 4
Drake’s data set: 3, 3, 4, 4, 4, 4, 5, 6, 7, 9
Question 1
Compare the two data sets. Do they have the same center, or is the center of Walden’s data set greater or less than the center of Drake’s data set?
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Question 2
How does the spread of Walden’s data set compare with the spread of Drake’s data set?
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Question 3
Predict the overall shape of the distribution of the two data sets. Will the graphs of the two data sets be skewed to the left, skewed to the right, symmetrical, or uniform?
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Question 4
Are there any outliers in the data sets? If there are outliers, do they lie at the lower end or at the higher end of the data sets?
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Answer:
The center of Walden’s data, 3, is less than the center of Drake’s data set, 6.
Step-by-step explanation:
i got this answer^
Answer:
Part A) Question 1 The center of Walden’s data, 3, is less than the center of Drake’s data set, 6.
Part A) Question 2 Walden’s data ranges from 2 to 4, and Drake’s data set ranges from 3 to 9. Drake’s data set has a greater spread than Walden’s data set.
Part A) Question 3 The graph of Walden’s data set will be symmetrical about the center, and the graph of Drake’s data set will be skewed to the right.
Part A) Question 4 Walden’s data set doesn’t have any outliers. Drake’s data has an outlier with the value 9, which is at the higher end of the distribution.
Part B) Question 1 The center is 5.
Part B) Question 2 This data set has no spread at all. All the values are the same, so the difference of the highest value and the lowest value in the set is 0.
Part B) Question 3 All the data points would lie at the same point, 5. The graph would be a single bar at the value 5, with no other data points anywhere else.
Part B) Question 4 No. All the observations in the data set are the same, and the only answer to the question is 5. So there is no need to find the center, spread, or shape of the data set.
Part B) Question 5 No, Walden was not asking a statistical question because all the people living in the same house would give him the same answer to his question. So the question did not allow for multiple answers among the population that it was posed to.
Δ MNO ~ Δ PQR
What is the length of x?
1 4/5
1 7/9
1 3/5
2 1/2
IF U STEAL POINTS U GET REPORTED
The value of x in the given triangle is [tex]1\frac{3}{5}[/tex]
What are the similar triangles?Similar triangles have the same corresponding angle measures and proportional side lengths.
Given that, two triangles are similar, Δ MNO ~ Δ PQR,
According to definition of similar triangles,
PR/MO = QP/NM
x/4 = 2/5
x = 8/5
x = [tex]1\frac{3}{5}[/tex]
Hence, the value of x in the given triangle is [tex]1\frac{3}{5}[/tex]
Learn more about similar triangles, click;
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Please help with math
Answer:
Ok here are the answers:
6: B
7: B
8: C
9: D
10: A
Have a good day! :)
Answer:
Step-by-step explanation:
6 is B (second)
7 is B (second)
8 is C (third)
9 is D (last)
10 is A (first one)
A family of 12 went to the local Italian restaurant for dinner. Every family member
ordered a drink and meal, 4 ordered an appetizer, and 8 people ordered cake for
dessert. Write an Expression
Your answer
Answer:
4a + 8d = 12
I hope this helps you
Last year there were 205 ducks living on the pond. This year there are 20% more ducks living on the pond. How many ducks are living on the pond this year? *
72 + (13- 4) + 5 x 23
72 +
+5x2²
72 + 9 +5 %
+ 5 X 8
8+
Answer:
196
Step-by-step explanation:
do parantheses first, then multiplication add the answer from parantheses and multiplication and lastly add 72
Brainleist please help.
Answer:
the person under or above me knows
Step-by-step explanation:
can i have Brainleist
(after) i did the math and it is 20 lol
Help Please Brainliest!!
Answer: = 1.07 × 107
(scientific notation)
= 1.07e7
(scientific e notation)
Step-by-step explanation:
Karen had to spend $24 on seven packs of markers for a workshop. After buying them, she had $10. How much did each pack of markers cost?
Answer:
$2
Step-by-step explanation:
24-10=14/7=2
Part D
Finally, use decimal numbers to write an expression that represents the net change in Rylee’s bank account balance for her entire shopping trip. Use your answers from parts A through C to guide you.
PART C; The original price of Rylee’s groceries was $23.50. This money is leaving her bank account, so represent the amount with a negative sign:
-$23.50.
Rylee got a 20% discount on her purchase. In other words, she got 20% of her money back. The expression that represents the net change in her bank account is
-$23.50 – (-$23.50 × 0.2).
Further simplify the expression by factoring -$23.50 from both terms:
-$23.50 – (-$23.50 × 0.2)
=
-$23.50(1 – 0.2)
=
-$23.50(0.8).
Answer:
look at explanation
Step-by-step explanation:
PART C; The original price of Rylee’s groceries was $23.50. This money is leaving her bank account, so represent the amount with a negative sign:
-$23.50.
Rylee got a 20% discount on her purchase. In other words, she got 20% of her money back. The expression that represents the net change in her bank account is
-$23.50 – (-$23.50 × 0.2).
Further simplify the expression by factoring -$23.50 from both terms:
-$23.50 – (-$23.50 × 0.2)
=
-$23.50(1 – 0.2)
=
-$23.50(0.8).
The net change to her banking account balance is $83.22.
What is net change?The net change theorem states that when a quantity changes, the final value equals the initial value plus the integral of the rate of change. Net change can be a positive number, a negative number, or zero.
Given that, She spent $36.50 plus 8% tax. (to calculate the tax amount, we have to multiply the cost by the percentage in decimal form)
36.50 x (8/100) =$2.92 (value of tax)
Adding to the original cost
36.50+2.92 = $39.42
Then, she spent $25 to refuel her car at the gas station.
39.42 +25 = $64.42
She bought groceries worth $23.50. At the grocery checkout, she handed over a coupon for a 20% discount on her purchase
23.50 x (20/100) = 4.7 (amount of discount)
Subtracting to the purchase
23.50 -4.7= $18.8
Hence, adding to the total cost.
64.42 +18.8 = $83.22
For more references on net change, click;
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Which of the equations is graphed below?
A. y=-2x + (1)/(2)
B. y = -2x – 1
C. y=-2x-(1)/(2)
D. y = -2x + 1
See picture for question
awser :5.4n 5 aka #3
------------------------------------------
Answer:
5.4n
Step-by-step explanation:
4n + 3.5 + 2.1n
4n+ 3.5 = 7.5n
7.5n - -2.1= 5.4n
how is water vapor different from other gases that make up air?
y'all better hurry up, I don't got no time for this TvT
Answer: It is an inert gas, which means that it does not react with other chemicals. Water is cycled through all of Earth's systems in each of its three phases: solid, liquid, or gas. Water vapor in the atmosphere is a greenhouse gas due to its heat-trapping ability. Carbon dioxide naturally composes
Step-by-step explanation:
Step-by-step explanation:
water vapour is made up of water droplets so it is different from other gases
HELP! WILL MARK BRAINLIEST IF CORRECT!
Answer:
72%
Step-by-step explanation:
18/25 = 0.72
0.72 x 100 = 72
Answer:
72%
Step-by-step explanation:
Step 1 we make the assumption that 25 is 100% since it is our output value
Step 2 we next represent the value we seek with x
Step 3 from step 1, follows that 100%=25
Step 4 in the same vein, x%=18
Step 5 this gives us a pair of simple equations: 100% = 25(1)
X%= 18(2)
Step 7: taking inverse of both sides yields
X%\100% = 18/25
—> = 72%
Therefore, 18 is 72% of 25
hi every one be safe and have a great rest of your week plz pass this on and add 100 points to it to make some ones day :) :) :) :)
Answer:
okay :)
Step-by-step explanation:
Answer:
Ok!
Step-by-step explanation:
Suppose a wristband has a circumference of 7.5 inches. What is the radius of the wristband to the nearest hundredth of an inch?
Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selected
A.4.78 inches
B.1.19 inches
C.2.39 inches
D.23.55 inches
Hint: C = πd where C is the circumference of a circle, π is about 3.14, and d is diameter
d = 2r where d is the diameter of a circle and r is the radius.
Which is an equivalent expression of:
6(3x + 5) - 11
A.18x - 5
B.18x + 10
C.18x - 11
D.18x + 19
Can someone plzzz help Ik I’m need!!!
Nico and Lorena used different methods to determine the product of three fractions.
Nico’s Method
Lorena’s Method
(2) (one-sixth) (Negative four-fifths) = (StartFraction 2 over 1 EndFraction) (one-sixth) (negative four-fifths) = StartFraction (2) (1) (negative 4) over (1) (6) (5) EndFraction = Negative StartFraction 8 over 30 EndFraction = Negative StartFraction 4 over 15 EndFraction
(2) (one-sixth) (Negative four-fifths) = (StartFraction 2 over 1 EndFraction) (one-sixth) (negative four-fifths) = StartFraction (2) (1) (negative 4) over (1) (6) (5) EndFraction = Negative StartFraction 8 over Negative 30 EndFraction = StartFraction 4 over 15 EndFraction
Whose solution is correct and why?
Nico is correct because he knew that Negative four-fifths = StartFraction negative 4 over negative 5 EndFraction.
Nico is correct because he knew that Negative four-fifths = StartFraction negative 4 over 5 EndFraction.
Lorena is correct because she knew that Negative four-fifths = StartFraction negative 4 over 5 EndFraction
Lorena is correct because she knew that Negative four-fifths = StartFraction negative 4 over negative 5 EndFraction
Answer:
Nico is correct because he knew that -4/5 is not equal to -4/-5.
-4/-5 is actually equal to 4/5.
Step-by-step explanation:
Answer:
Nico is correct.
Step-by-step explanation:
-4/5 doesn't equal to -4 over 5. Eh- i tried- whatevs-
I want Mark best answer
Answer: 25 songs
Step-by-step explanation:
Cuz 1 song = 0.99
And total = 24.75
So if we divide the total by the per song cost = how many songs she downloaded
24.75/ .99 = 25
A net for a rectangular prism with dimensions of 1 centimeter, 2 centimeters, and 5 centimeters is given.
What is the surface area of this rectangular prism?
Enter your answer in the box.
cm²
The figure contains a net of a solid. The net is made up of 6 rectangles. The first rectangle has a length of 5 centimeters and a width of 2 centimeters. Each side of this rectangle shares a side with one other rectangle. The rectangles above it and below it each have a length of 5 centimeters and a width of 1 centimeter. The rectangles to its left and right each have a length of 1 centimeter and a width of 2 centimeters. The sixth rectangle shares its bottom side with the top side of the upper 5 centimeter by 1 centimeter rectangle. The length of the sixth rectangle is 5 centimeters, and its width is 2 centimeters.
Answer:
34cm^2
Step-by-step explanation:
Step 1: Find the surface area of each side.
Side Dimensons:
(5x2)2
(5x1)2
(2x1)2
Then do the math
5x2=10
10x2=20
20
5x1=5
5x2=10
10
2x1=2
2x2=4
4
Step 2: Add each side together
20+10+4= 34
34cm^2
What is the area of `∆STR`?
A.
30 square feet
B.
34.5 square feet
C.
57.5 square feet
D.
60 square feet
Here another one T^T
In a survey of 160 people who have reptiles as pets, 40% have a pet snake. Of those with a pet snake, 25% also have a pet lizard. Of those who do not have a pet snake, 75% have a pet lizard.
Part A
Enter the correct answers in the boxes to construct a two-way frequency table to display the data.
Part B
What percentage of those surveyed have a pet lizard?
Part C
What percentage of those surveyed have both a snake and a lizard?
Percentage of people having Lizard = 55% , Percentage of people having both Lizard & Snake = 10%
Important Information : Percentage people having pet snake = 40%
C] Percentage people having pet lizard, along with pet snake = 25% of those having pet snake = 25% of 40% = 10% {Percentage of people having both snake & lizard)
Percentage of people having pet snake only = 75% of those who don't have snake = 75% of ( total - 40%) = 75% of 60% = 45%B] Total percentage of people having pet lizard = 10% + 45% = 55%
To learn more about Percentage, refer https://brainly.com/question/26080842?referrer=searchResults
pleasee help ill give brainliest
Evaluate the following.
18/3+7-2x5
Answer: 3
Step-by-step explanation:
18/3+7-2x5 = 3
Please help me with these questions on the Skeletal System
1. Which is not a function of the skeletal system?
A. Movement and protection B. Homeostasis C. Support D. Transport oxygen-rich blood to the body
2. Which organism has an exoskeleton?
A. A shark B. A human C. A black bear D. A common beetle
3. What is main function of the skull?
A. To keep out electromagnetic waves B. Allows for movement from one place to another C. Produces brain cells D. Protects the brain from injury
4. Tendons and ligaments are used to ___________.
A. Exchange gases within the body B. Transport nutrients to cells C. Produce red blood cells D. Attach bones to muscles and bones to bones.
Answer:
1_D
2_B
3_D
4_D
This the correct ones
(x^6x^2) i know this easy but plz help me
Answer:
x^8
Step-by-step explanation:
<3
Answer:
8=^
Step-by-step explanation:
The dimensions for the rectangle marked 'B' are _____ centimeters and _____ centimeters.
8, 12
3, 8
3, 5
Answer: a. 8, 12
Step-by-step explanation:
Basing on the picture above, you can readily determine the dimension of the rectangle B.
Its width is 12 cm and its length is 8cm.
