Part A: c for cost. c=0.31m+0.5
0.31m is the cost per minute. 0.5 is cost per call.
Part B: 0.31m+0.5=5.15 to solve we must rearrange.
subtract 0.5 from each side giving us 0.31m=4.85
divide by 0.31 giving us m=15.65
Answer:
a,b,c
Step-by-step explanation:
first pic-x=20 y=20/3
second=x=24 y=12/3
third=x=27 y=54
Answer:
Step-by-step explanation:
<h3>
Answer: The value of P(A or B) is 0.8.</h3>
Step-by-step explanation: We are given P(A)=0.6 , P(B)=0.3 and P(A and B)=0.1.
P(A and B)=0.1 could be written as P(A∩B) = 0.1.
We need to find P(A or B) that is P(A∪B) = ?
We know formula,
P(A∪B) = P(A) + P(B) - P(A∩B)
Plugging values in formula, we get
P(A∪B) = 0.6 + 0.3 - 0.1
P(A∪B) = 0.9 -0.1
P(A∪B) = 0.8.
<h3>Therefore, the value of P(A or B) is 0.8.</h3>
Answer: The correct answer is B.
Step-by-step explanation: We are given the cost of restaurant meal of M. Clark is $25.50.
and she has given 20% of the meal's cost as a tip to the waiter.
Step 1: Calculating the amount of tip paid
Total tip paid = $5.1
Step 2: To find the total amount, we add the cost of the meal and the tip paid
Total amount = Cost of the meal + Tip paid
Total amount = $25.50 + $5.10
Total amount paid by Ms. Clark = $30.6
