Answer:
-5
Step-by-step explanation:
x = first number
y = second number
From the first sentence
11 = 2x + 3y
From the second sentence (I'm assuming the word "dust" should be "first"
y = 2-x
rewritten as
x + y = 2
So your system of equations is
2x + 3y = 11
x + y = 2
Multiply the 2nd equation by -2
2x + 3y = 11
-2x - 2y = -4
Add the two equations together
y = 7
Use y=7 to solve for x
x = 2-y = 2-7 = -5
8 miles;
$20 - $1 (the tip) = $19
$19 - $3.00 = $16
$16 divided by the $2.00 per mile = 8 miles
I’m pretty sure that’s it, hope it helps!
Answer:
d.
Step-by-step explanation:
Inferential Statistics is one of two statistical methods that is used to analyze data by drawing conclusion about a bigger population from a sample. In other words, inferential statistics allows a researcher to make assumptions and arrive at conclusions about a larger group known as the population, by using just a small portion known as the sample of the population as a study. The study of this small portion is then used to explain the behaviour of the entire population. Random sampling is carried out to ensure that the sample is a true representation of the population
It involves:
- A definition of the population to be studied.
- Drawing a sample out of this population.
- Analysis of data.
The total sum of angles at a point is 360, so basically just minus 360 by 90 and 60, and u get k, which is 210 °
