baileybryant580
28.09.2019 •
Mathematics
Kim, laura and molly share £385. the ratio of the amount kim gets to molly is 2: 5. kim gets £105 less than molly gets. what percentage of £385 does laura get?
Solved
Show answers
More tips
- G Goods and services How to Properly Calculate the Power of Your Air Conditioner?...
- F Food and Cooking Effective Methods to Organize Videos in your iPad According to Content...
- F Family and Home Parquet or laminate, which is better?...
- L Leisure and Entertainment How to Properly Wind Fishing Line onto a Reel?...
- L Leisure and Entertainment How to Make a Paper Boat in Simple Steps...
- T Travel and tourism Maldives Adventures: What is the Best Season to Visit the Luxurious Beaches?...
- H Health and Medicine Kinesiology: What is it and How Does it Work?...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
Answers on questions: Mathematics
- M Mathematics What s 186.202 rounded to the nearest square meter...
- M Mathematics How do i break apart to subtract 13 - 5...
- M Mathematics Winnie used a probability simulator to roll a 6-sided number cube and flip a coin 100 times. the results are shown in the tables below: number on the cube number of times...
- M Mathematics If the tablet is 9 inches wide, will it fit into a 9 inch by 15-inch protective cover?...
- M Mathematics How to simplify variable expressions...
- M Mathematics Alison practices multiplycation for 20 minutes and divison for 10 minutes how many problems does she practice in 15 days...
- M Mathematics Solve: x/ 7 = 9, explain how you did it....
- M Mathematics Aline has a rise of 6 and a slope of . what is the run? 30 90 120...
- M Mathematics Aperfect square trinomial shows that (a+b)^2=...
- M Mathematics Nicole borrowed $550 for five years at 3 percent interest, compounded annually. what is the total amount she will have paid when she pays off the loan?...
Ответ:
laura: l
molly: m
"The ratio of the amount Kim gets to molly is 2:5"
k/m=2/5 >>>> 5k=2m
"Kim gets £105 less than molly gets"
k=m-105
solve these two equations together:
5k=2m
k=m-105
k=70
m=175
that means Laura's share is 385-70-175 = 140£
Then the percentage of £385 Laura gets is 140/385 = 4/11 = 36.36%
I hope that helps
Ответ:
Explanation:
1. Part A:
Since the points in the scatter plot show a moderated upward trend, you must expect a correlation coefficient close to ± 0.5. A correlation coefficient of 0.01 is too close to 0, which would mean that the points are almost not correlated at all.
The correlation coefficients, r, measure the strength of the correlation of two variables and they can have values from - 1 to 1.
r = - 1 is a perfect negative correlation: the points will adjust perfectly to a line with negative slope.r = + 1 is a perfect positive correlation: the points will ajdust perfectrly to a line with positive slope.r = 0 means that the variables are not correlated at all.Hence, the closer to zero, the worse the correlation is, and that is what r = 0.01 means, but the graph shows other thing.
Therefore, the calculated value of r = 0.01 is not accurate for t his scatter plot.
2. Part B.
A causal relationship means that the expllanatory variable (the independent variable) is the cause of the dependent variable.
Hence, you must find a reasonable variable that can be the cause of the number of strawberries picked.
I could imagine the amount of rainfall the week before of harvest.
Thus, the scenario could be:
Amout of rainfall in mm (x) Number of strawberries picked (y)
100 20
50 40
25 80
12.5 160
6.25 320
The amount of rainfall is the cause of the number of strawberries picked, and you could find a model (function) that relates both variables.