Answer:
Step-by-step explanation:
, substitute 
to x
= 
or 3.75
=
=
Step-by-step explanation:or 3, 19, 9, 7, 27, 4, 8, 15, 3, 11. ... There are 10 total numbers, so the 5th and 6th numbers are used to ... The 2 middle numbers only need to be averaged when the data set ... For instance, if your set has 21, 9, 14, 3, 11, 33, 5, 9, 16, 21, 5, 9, what is the mode?
<span>3x + y= 17 (a)
4x + 2 y = 20 (b)
Multiply (a) by 2:
6x + 2y = 34 (a)
4x + 2y = 20 (b)
make: (a) - (b)
2x = 14 -----> x =7
-------------------------------
Replace the value of x = 7 in one of anterior equation:
</span>3x + y= 17
3 x 7 + y = 17
21 + y = 17
y = 17 - 21
y = -4
Answer:
85
Step-by-step explanation:
To solve this, you would have to figure out what 80% of 106 is. 80% of 106 is 84.8. If you were to round this to the nearest whole number, you would get 85.
6x+8=-3x-10
9x=-18
x=-2
-3(-2)-10=-4
So x=-2 and y=-4
