Answer:
Any number of hours greater than 16
Step-by-step explanation:
First thing we have to do is write each equation for each cafe's internet access. For Cyber Station, the rate is $1.50 per hour which is the slope of the line (slope is, after all, the rate of change of y to x...or here, cost to hours). The flat fee is what you are charged even if you use 0 hours. The linear equation for Cyber Station is y = 1.5x + 12
The linear equation for Web World, which only has a rate but no flat fee, is
y = 2.25x
We are asked for how many hours of access, x, is the cost, y, at Cyber Station LESS THAN the cost at Web World. That tells me that you are working with linear inequalities in class! We want the cost at CS to be less than that at WW so our inequality looks like this:
1.5x + 12 < 2.25x
Solving for x:
16 < x. That means, in words, that any number of hours over 16 will make Cyber Station cheaper to use than Web World.
Answer:
12 minutes
Step-by-step explanation:
my guts are always right
Answer:20 is the least common
Step-by-step explanation:
Answer:
13 customers use to text,
10 customers use the Internet,
the probability that a randomly selected customer who is on plan B uses the phone most often to text is
Step-by-step explanation:
A phone company surveys a sample of current customers to determine if they use their phones most often to text or use the Internet.
Plan B:
13 customers use to text,
10 customers use the Internet,
23 customers in total.
The probability that a randomly selected customer who is on plan B uses the phone most often to text is