D is the correct answer 0.3234
Answer:
24.2 marks
Step-by-step explanation:
25 + 36 + 20 + 15 + 24 + 30 + 38 + 32 + 22 = 242
since there are 10 students we divide 242 by 10 and get 24.2
Given the set of equations:
2x + y = 10
y = 3x
Let's solve for x and y.
Here, let's use substitution method.
Substitute 3x for y in equation 1:
2x + y = 10
2x + 3x = 10
5x = 10
Divide both sides by 5:
In equation 2, substitute 2 for x to find y.
y = 3x
y = 3(2)
y = 6
Therefore, we have:
x = 2 and y = 6
ANSWER:
x = 2, y = 6
Answer:
7. is 5 - 35n
8. is -6x - 24
9. is 15m - 30
10. is 24p - 28
11. is 5b - 5
12. 5x + 45
RULE:
WHEN MULTIPLYING TWO NEGATIVES YOU WILL GET POSITIVE.
IF ONE IS NEGATIVE AND THE OTHER IS POSITIVE WHEN MULTIPLYING IT WILL BE NEGATIVE.
WHEN MULTIPLYING TWO POSITIVE NUMBERS IT WILL ALWAYS BE POSITIVE
SAME THING IF YOU MULTIPLY A POSITIVE NUMBER WITH A NEGATIVE NUMBER YOU GET A NEGATIVE AS YOUR ANSWER
YOU NEED ONE SIGN OF THE SAME WHEN MULTIPLYING TO BE A POSITIVE AS YOUR ANSWER
YOU NEED ONE SIGN TO BE DIFFERENT FROM THE OTHER WHEN MULTIPLYING TO GET A NEGATIVE AS YOUR ANSWER
Y-y1=m(x-x1) is point slope form
slope=m
a point is (x1,y1)
given
slope=1/2
point=(6,-3)
x1=6
y1=-3
y-(-3)=1/2(x-6)
y+3=1/2(x-6)
not listed
if we were to put in standard form (ax+by=c)
2y+6=x-6
-x+2y=-12
x+2y=12
the answer is last option even though it is not in point slope form
