Answer:
Step-by-step explanation:
Let us assume that she makes 10 minutes of call.
Telecorp has a flat rate of 7 cents per minute. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is
0.07 × 10 = $0.7
America's charges 25cents per call. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is $0.25
Phone busters charges 35 cents per call and 2 cents per min. If she uses this cell phone service, the amount that she would pay for 10 minutes of call is
0.35 + 10 × 0.02
= 0.35 + 0.2
= $0.55
The cheapest service is that of America's. Therefore, she should choose it.
For T=0 to T=10, D = T*3*6
<span>for T>10 to T=20, D = 30*6 + (T-30)*3*5.5 </span>
Answer:
The probability of selecting a single spotted Pacific banana slug will be .
Step-by-step explanation:
There are three spotted Pacific banana slugs for every four non spotted Pacific banana slugs.
There are three spotted Pacific banana slugs in every group of 7 Pacific banana slugs.
There are four non spotted Pacific banana slugs in every group of 7 Pacific banana slugs.
Therefore the probability of selecting a single spotted Pacific banana slug will be
= .
The probability of selecting a single non spotted Pacific banana slug will be = .
Answer:
Step-by-step explanation:
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The answer is C. Infinite solutions