Answer:
k = 11 let me know if you don't understand how I got this.
Step-by-step explanation:
I'm gonna write it out
U V total
S 26 42 68
T
21 k 32
Total 47 53 100
So, you want to look at the column and row labeled total, this is the key. for the row total, it sums up everything in the column above it. so for the u column, the total value is 47 while the two values above it are 26 and 21. These two values sum to 47. This is the same for all other columns, and you can use the same reasoning with the total column as well summing rows.
This gives you two ways to solve for k. either 21 + k = 32 or 42 + k = 53. Either way gets you the answer k = 11
V/2 + 65 = 6V/7
Multiply by 14
7V + 910 = 12V
910 = 5V
V = 182
so the answer is 182
( if you want to write a fraction put / like ( 1/2), Thanks!
Step-by-step explanation:
y = 5x + 4, x = -1
y = 5(-1) + 4
y = -5 + 4
y = -1
