6x + 1 = 2x + 10 + 79
6x + 1 = 2x + 89
4x = 88
x = 22
Answer:
The mean depends on the no. of family members but the question hasn't mentioned it. So I have no idea what to do with this.
Answer:
7.25, 8.75, 10.25, and 11.75
Step-by-step explanation:
every one is added by 1.50
1.25+1.50=2.75
Answer:
y = (1/2)x + 1
Step-by-step explanation:
linear line equation is y = mx + b
Where m is the slope and b is the y-intercept when x is 0.
For m, m is change in y(delta y) over change in x(delta x).
We are given two points: (0,1) and (4,3).
m = (y2 - y1)/(x2 - x1) = (3-1)/(4-0) = 2/4 = 1/2
y = (1/2)x + b
Now plug in (0,1) into above equation to find b value.
1 = (1/2)0 + b => b = 1
Final equation is y = (1/2)x + 1
