Answer:
3 groups of 5
Explanation:
if x is the number of groups of four, and y is the number of groups of five, then 4x +5y =39 (four students per group of four times the # of groups of four, and 5 students per group times the # of groups of five, which should equal the total amount of students, 39). also, x+y=9. (number of each type of group = 9 groups total).
then, use these two equations and solve for y, by "canceling out" x. there are many ways to do this, but i'm going to use subtraction.
4x-5y=39
x+y=9
you want to change the equation
x+y=9
into
4x+4y=36
by multiplying the whole equation by four. because in order to cancel out the x, you need it to equal zero. in the first equation, its 4x.
so its now
4x-5y =39 MINUS
4x+4y=36
___________
y=3
you can check your work because the remaining 6 groups of four (24 total students) plus the 3 groups of five (15 total students) adds up to equal 36
The main problem associated with using these results to draw conclusions about the general public's perception is a lack of random selection.
<h3>What is a simple random sample?</h3>
A simple random sample simply refers to a subset of items that are typically selected from a statistical population (larger data set), wherein, each member of the subset has an equal probability of being selected.
Based on this survey by the Canadian magazine, we can infer and logically deduce that the main problem associated with using the aforementioned results to draw conclusions about the general public's perception is a lack of random selection.
Read more on random sample here: brainly.com/question/17831271
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• We’re trying to inscribe a square inside of a circle
• If we bisect the square, we get two triangles with right angles
• Circle diameter = 1.4m = hypothenuse of triangles = 2 * radius
• 2r = r * sqrt(2) + r * sqrt(2)
• We want to know the value of r * sqrt(2) is since that’s one of the sides of the inscribed square
• (0.7) * sqrt(2) = 0.99 m = side of inscribed square
• 0.99m < 1 m side
• So we are just barely not able to cut a 1m sided square in a circle piece of tin with 1.4m diameter
Answer:
I am thankful for my family's health and the ability to be with them nowadays with the pandemic going on
