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 is: 16/29
First, to find the denominator (bottom number), add 13 and 16 which equals 29. That means the denominator is 29. The numerator(top number) is 16. That means the fraction is 16/29.
Answer:
ax+by =c
Step-by-step explanation:
where a and b are the coifficients of the x and y variable respectively
550=km is what I think it is but not a hundred percent sure
This may be the answer to the question. but options aren't matching