Answer: 7 hours 15 minutes, 6 hours 45 minutes, 5 hours 12 minutes, 6 hours 6 minutes
Step-by-step explanation:
7 1/4 hours = 7 hours + 1/4 × 60 = 7 hours 15 minutes
6 3/4 hours = 6 hours +3/4 × 60 = 6 hrs 45 mins.
5 1/5 hours = 5 hours + 1/5 × 60 = 5 hrs 12 mins.
6 1/10 hours = 6 hours + 1/10 × 60 = 6 hours 10 mins.
Answer:
-2/8 or -1/4
Step-by-step explanation:
-8-(-6)=-2 bc the -6 turns to 6 and 9+1=8
It should be noted that the expected return on each ticket is $3 and the expected profit is also $3.
<h3>
Calculating the expected value</h3>
From the information given, it was stated that they are selling tickets for $6 each and will sell 900 tickets and that there is one $1,000 grand prize, three $500 second prizes, and twelve $10 third prizes.
Therefore, the expected value will be calculated thus:
E = (1/900 × 1000) + (3/900 × 500) + (12/900 × 10)
E = 2.91 = $3
The expected return on each ticket is $3.
Since the cost of the ticket is $6, the expected profit per ticket will be:
= $6 - $3 = $3
Learn more about the expected value on:
brainly.com/question/15858152
Answer:
x=8
RPS = 36
Step-by-step explanation:
QPS = 180
The two angles that form QPS
QPR + RPS = 180
7x+88 + 3x+12 = 180
Combine like terms
10x+100 =180
Subtract 100 from each side
10x = 180-100
10x = 80
Divide by 10
x =80/10
x = 8
RPS = 3x+12
= 3(8)+12
24+12
36