Answer:
y = -1/2
Step-by-step explanation:
(3x + 4y = 4)
+
(2x - 4y = 6)
______________
5x = 10
x = 2
plug in x for any of the two equations ....
2(2) - 4y = 6
4 - 4y = 6
-4y = 2
y = -1/2
7x + 9y = - 27_________eq1
3x - y = 3__________eq2
Multiply eq 2 by 9 and then add the resulting eq with eq1.
eq2 x 9 gives us 27x - 9y = 27___________eq3
add eq3 with eq1 we get.
34x = 0.
where x=0/34
x=0.
substitute x into any of the above equations to get y.
substitute x into eq1. we get:
7(0) + 9y =-27
9y = -27
y= -27/9
y = -3.
<span>I think you wanted to find p̂, or "p-hat". This is simply the proportion of the sample. So:
p̂ = 16/93 ~= 0.172
Hope this helps :)</span>
Answer:
Zero Solutions
Step-by-step explanation:
3x+3-5=3x-2
3x-3x= -2+5
0= 3
0 does not equal 3, so zero solutions.
Multiply 3 and 8 then you will have your answer
