5775 divided by 35 solution full
2 answers:
You might be interested in
Step-by-step explanation:
Answer:
There is a possibility of at least 100 calling minutes and at most 110 calling minutes.
Step-by-step explanation:
The given equation in words from the question is: C = 18 + 0.90 (x - 50)
This gives the formula for the Monthly Cost for the plan, C
The aim is to find the possible number of call minutes for the cost between $63 to $72.
So, we solve this first equation for the value of "x", putting C = $63
18 + 0.90 (x - 50) = 63
0.90 (x - 50) = 63 - 18 = 45
x - 50 = = 50
x = 50 + 50 = 100 calling minutes
Next, we put C = $72, so that we have;
18 + 0.90 (x - 50) = 72
0.90 (x - 50) = 72 - 18 = 54
x - 50 = = 60
x = 50 + 60 = 110 calling minutes
So, for a monthly cost of at least $ 63 and at most $ 72, there is a possibility of at least 100 calling minutes and at most 110 calling minutes.