Answer:
Step-by-step explanation:
Given :
From rules of probability :
........................... equation *
can be written as x
Also , can be written as x
substituting into equation * , we have
since P(B) = 0.7, then
so , substituting each values , we have
Answer:
Kindly check explanation
Step-by-step explanation:
Given the following :
Monthly fee = $17
Additional fee per unit of use = $0.05
Least amount she's been charged in a month = $83.90
Equation to represent the number of minutes 'M':
monthly fee + (additional fee per minute × M) = $83.90
Possible number of minutes :
83.90 ≤ $17 + 0.05M
$17 + $0.05 × M = $83.90
$0.05*M = $83.90 - $17
$0.05*M = $66.90
M = $66.90 / 0.05
M = 1,338 minutes
I believe the answer is 5040
I believe 10% because 390 and 39 are exactly the same numbers almost
An expression formed from operations such as addition, multiplication, powers and roots.
:)