Answer:
.
Step-by-step explanation:
Answer:
The answer is 5.
Step-by-step explanation:
It's the only one that makes sense, and i took the quiz and got 100%
You're welcome :D
Answer:
Step-by-step explanation:
Our perimeter, since we have 5 sides that are all the same length, is
P = 5s, where P is perimeter and s is the length of the sides. For us,
80 = 5s, so
s = 16
Let x = volume of saline solution A,
y = volume of saline solution B.
We're going to set up two equations.
Firstly, x + y = 6. That gives us y = 6 – x (1)
Second, 0.1x + 0.05y = 0.08•6,
or 0.1x + 0.05y = 0.48 (2)
Substitute (1) into (2):
0.1x + 0.05(6 – x) = 0.48
0.1x + 0.3 – 0.05x = 0.48
0.05x + 0.3 = 0.48
Subtract 0.3 from both sides:
0.05x = 0.18
x = 3.6
Then y = 6 – 3.6 = 2.4
So we have to use 3.6 litres of solution A and 2.4 litres of solution B.
A sample in which each individual in the population has an equal chance to be selected is a "simple random sampling".
<h3>
What is simple random sampling?</h3>
A subset of such a statistical population called a simple random sample is one where each member has an equal chance of being chosen. A straightforward random sample is intended to offer an objective depiction of a group.
Some key features of simple random sampling are-
- A straightforward random sample, where each participant has an equal chance of being selected, selects a tiny, random piece of the total population that will represent the full data set.
- Using techniques like lottery or random draws, researchers can generate a straightforward random sample.
- If a sample does not precisely reflect the population it really is intended to represent, there may have been a sampling error.
To know more about simple random sampling, here
brainly.com/question/13219833
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