Erin is planning a fruit orchard with rows of apple trees (x) and rows of pear trees (). Each row will contain either 12 apple trees or 8 pear trees. Erin plans to have more rows of apple trees than pear trees. She will

plant at least 400 trees. To represent this, she writes the

system of inequalities shown.

xsy

12x + 8y > 400

Which statement about Erin's planting is true?

a Erin must plant more than 20 rows of apple trees.

O Erin could plant the same number of trees of each type.

When Erin plants 30 rows of pear trees, she will plant at least 600 trees altogether.

When Erin plants 360 apple trees, the maximum total number of trees she could plant is 608.

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

answer: get a conversion sheet out i dont know the exact measurments

step-by-step explanation: divide the number of feet with the nu,ber of milrs and there your answer

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.