There are 10 total marbles and three are pink. So you are to determine the probability of choosing a pink marble, placing it back in the bag and choosing another pink marble.
The probability of choosing a pink marble is # of pink marbles to # of all marbles which is 3/10. Since we place the marble back in the bag, the probability is the same for the second time.
To determine the probability of both occurrences, we need to multiply 3/10 x 3/10 which is 9/100. This can be written as 9:100 as a ratio.
Answer: 11am
Step-by-step explanation:
To solve this, we have to calculate the lowest common multiple of 20 and 30. This will be:
20 = 20, 40, 60, 80, 100
30 = 30, 60, 90, 120, 150.
Here, the lowest common multiple is 60.
Therefore, we add 60 minutes to 10am. This will be:
= 10am + 1 hour
= 11 am
The next time that both buses leave at the same time would be 11am
Answer:
9 ft and 9 inches
Step-by-step explanation:
there are 12 inches in a foot
1ft = 12in
2ft = 24 in
3ft = 36 in
4ft = 48
and so on
9 ft = 108 inches which is the closes to 117.
So we have 9 ft
subtract 117 from 108, which is 9 inches left over
Answer:
The division was computed incorrectly.
Step-by-step explanation:
Given
Workings:
to percentage
Required
Explain his error
The question says 5/8
Instead, Alejandro's working shows 8/5.
This working is done in an incorrect order and the correct solution is:
Let
Solve the fraction
Multiply by 100%
<em>Hence, option (a) is correct.</em>
