Answer:
y = 4/3x +2
Step-by-step explanation:
The graph crosses the y-axis at y=2, so that is the y-intercept.
The points have a rise of 4 units for each horizontal run of 3 units, so the slope is ...
m = rise/run = 4/3
The slope-intercept equation for the line is ...
y = mx +b . . . . . . line with slope m and y-intercept b
y = 4/3x +2
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Given:
Anna’s cell phone plan charges her $30 per month plus a $150 one-time activation fee.
Evelyn’s cell phone plan charges her $20 per month, plus a $450 one-time activation fee.
To find:
The number of months after which the costs for the girls’ cell phone plans the same.
Solution:
Let x be the number of months.
Total cost = Fixed cost + Variable cost
According to the question, cost equation for Anna’s cell phone is
...(i)
Cost equation for Evelyn's cell phone is
...(ii)
Equate (i) and (ii) to find the time after which the costs for the girls’ cell phone plans the same.
Divide both sides by 10.
Therefore, the costs for the girls’ cell phone plans the same after 10 months.
The answer would be A. If it wasn't limited to a one digit number multiplied by a power of 10 then the answer would be 9.06*10^10, but the limitation requires a single digit leaving only the answer 9*10^10 because 10^10= 100,000,000,000. That multiplied by 9 would give you 900,000,000,000.
Answer:
![\sqrt[3]{2}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B2%7D)
Step-by-step explanation:
18
9 . 2
3 3
Angles in a triangle add up to 180 degrees.
(2x-10)+(x+30)+70=180
(2x-10)+(x+30)=110
3x+20=110
3x=90
x=30
so A:
2(30)-10
=50
