Answer:
B. The science Students
Step-by-step explanation:
This is a simple answer. to find the average, or the mean. So you add up all of the math scores and divide it by 9, which gives you 36. Then, you add up all of the science scores and divide them by 9, which gives you about 45. So if the science students are on the bottom plot, then it is B, the science students.
Y = number of yellow marbles
r = number of red marbles
The total number of marbles
y+r=61
The number of yellow marbles compared to red.
y=2r+4
Substitute the second equation into the first equation because they are the same variable and, therefore, are the same number.
2r+4+r=61
Simplify
3r+4=61
Subtract 4 from both sides
3r=57
Divide both sides by three
r=19
We have the number of red marbles, but we are looking for the number of yellow marbles, so plug the 19 red marbles into either equation.
y=2(19)+4
or
y+19=61
Simplify
y=42
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Answer:
42 yellow marbles
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Equations:
y+r=61
y=2r+4
Answer: 90°
Explanation: the sum of all the angles in a triangle = 180. So 70 + 30 = 90 and 180-90=90
<u>Step-by-step explanation:</u>
Co-ordinates = (4,8) & (-9,5)
Slope (m) = (y² - y¹) / (x² - x¹)
(m) = (5 - 8) / (-9 - 4)
(m) = -3 / -13
(m) = 3 / 13
Equation => y = mx + c
Answer:
The volume of the cone is 1526.04 km cubed
Step-by-step explanation:
The equation for a right cone is πr^2 multiplied by h/3. The r equals radius and the h equals 18. So, we get the equation π(9)^2 multiplied by 18/3. When put into a calculator, you get 1526.04. (Remember to use 3.12 NOT π.)