The probability of drawing two green marbles, with replacement is 
<h3><u>Solution:</u></h3>
Given that There are 4 red and 6 green marbles in a jar
<em><u>To find: probability of drawing two green marbles, with replacement</u></em>
The probability of an event is given as:
Here total number of possible outcomes = 4 red + 6 green marbles = 10
Favourable outcome is drawing two green marbles with replacement
So favourable outcome = 6
<em><u>So probabilty of choosing green marble:</u></em>
Now given that with replacement, so we get
Thus probability is
Answer:
4/9
Step-by-step explanation:
There are 9 positive integers less than 10: {1, 2, 3, 4, 5, 6, 7, 8, 9}.
The 4 primes less than 10 are ... {2, 3, 5, 7}.
The probability Daria selected a prime is 4/9.
Answer:
2/25
Step-by-step explanation:
Answer: s = 8
Step-by-step explanation:
Answer:
- first mechanic: $105/hour
- second mechanic: $55/hour
Step-by-step explanation:
Let r represent the rate charged by the first mechanic. Then 160-r is the rate charged by the second mechanic. The total of charges is ...
20r +5(160-r) = 2375
15r +800 = 2375 . . . . . . eliminate parentheses
15r = 1575 . . . . . . . . . . . . subtract 800
r = 105 . . . . . . . . . . . . . . . divide by 15. First mechanic's rate.
160-r = 55 . . . . . Second mechanic's rate
The first mechanic charged $105 per hour; the second, $55 per hour.
