Answer:
y = 130
Step-by-step explanation:
(4x+8) + (3x-19) + (x+7) = 180
4x + 8 + 3x - 19 + x + 7 = 180
(4x + 3x + x) + (8 -19 + 7) = 180
8x - 4 = 180
8x -4 +4 = 180 +4
8x = 184
8x/8 = 184/8
x = 23
3(23) - 19 = 50
50 + y = 180
180 - 50 = y
y = 130
Answer:
There are 31 people in the row
Step-by-step explanation:
Let us say that the number of people in the row is = x
We can also assume that the people arranged in the row are counted from one end.
The median value can be got using the formula:
median (middle person) = (n +1 )/2
where n = number of people in the row
hence, we will have
16 = (n +1)/2
n = 32 -1 =31
Therefore, there are 31 persons in the row
3x and 4x are like terms. Add them together and you get <u>7x.</u>
2 and -1 are like terms. Add them together and you get <u>1</u>.
3x+2+4x-1
<u>7x+1</u> is your final answer
