Answer:
more than 200 calls
Suppose number of calls = x
According to plan 1: Total monthly charge is $24
According to plan 2: Fix charge is $16 and $0.04 per call
cost of x's call = $0.04x
and monthly charge according to plan 2 = 0.04x + 16
a) Plan 1 is more economical than plan 2.
0.04x + 16 > 24
solve it for x
.04x > 8
x > 200
b) So, if more than 200 calls are made then Plan 1 is more economical.
Step-by-step explanation:
Answer:
Medbay
Step-by-step explanation:
Answer:
Step-by-step explanation:
B.
Answer:
It's B. 0.4
Step-by-step explanation:
the first probability is 0.6 and 0.6+x=1 so x is 0.4
Answer: the first integer is -6 and the second integer is -4
Step-by-step explanation:
