subject
Mathematics, 28.03.2020 20:51 eriter3574

A bag contains n counters.
One counter is blue and the rest are red.
Two counters are taken at random from the bag.
a) Express, in terms of n, the probability that a counter of each colour is taken.
Give your answer as a fraction in its simplest form.
b) The probability that a counter of each colour is taken is 0.125
How many red counters are in the bag?

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 18:00, asiaemerlle
What percent of the circle below is shaded?
Answers: 1
image
Mathematics, 21.06.2019 18:30, thefandomarmy24
Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)
Answers: 1
image
Mathematics, 21.06.2019 18:40, love12236
The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?
Answers: 1
image
Mathematics, 21.06.2019 19:00, ALEXMASTERS64
Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?
Answers: 1
You know the right answer?
A bag contains n counters.
One counter is blue and the rest are red.
Two counters are take...

Questions in other subjects:

Konu
Social Studies, 12.02.2021 03:30
Konu
Computers and Technology, 12.02.2021 03:30