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How many different ways can you write a fraction that has a numerator of 2 as a sum of fractions?
Infinitely many ways, since if you have found one way then take one of the fractions and replace it by an equivalent fraction. Repeat for ever.
How many different ways can 40 be written as a sum of 2 positive prime numbers?
Three ways. 3 + 37 11 + 29 17 + 23
How many backpacks out of 38 contained none of the three writing instruments?
First, I would like to say that the whole question is not here. The question states: upon examining the contents of 38 backpacks, it was found that 23 contained a black pen, 27 contained a blue pen, and 21 contained a pencil, 15 contained both a black pen and a blue pen, 12 contained both a black pen and a pencil, 18 contained both a blue pen and a pencil and 10 contained all three items. How many backpacks contained none of the three writing instruments? OK I will explain this the best I can! Starting out, their are 10 backpacks that contain all the items. 12 contained both a black and blue pen. You would subtract 10 from 12; therefore there are 2 backpacks that contain only black and blue pens. 18 contain both a blue pen and a pencil. subtract 10 from 18 and you get 8. 15 contained both a black pen and a blue pen. You would subtract 10 from 15 and you get 5. There are 23 with black pens. So you would do 23 - (5+10+2)= 6. There are 6 backpacks that contain only black pens. There are 27 that contain blue pens. So you would do 27 - (5+10+8) = 4. There are 4 backpacks that contain only blue pens. There are 21 backpacks that contain a pencil. You would do 21 - (2+10+8) = 1. All together, there a 6 that contain only black pens, 5 that contain only black and blue pens, 4 that contain only blue pens, 10 that contain all three items, 2 that contain only black pens and pencils, 8 that contains only blue pens and pencils, and 1 that contains only 1 pencil. So you would add 6+5+4+10+8+2+1= 36. There are 38 backpacks, so you would subtract 36 from 38. There are 2 backpacks that contain none of the three writing instruments. Ashfords quiz says this is right.
How do you get 72 but with only prime numbers?
there are many (infinite) ways but just one is 72=2*(31+5)
How many ways can 24 be written as the sum of 2 different prime numbers?
24 = 11 + 13 = 5 + 19
How many different ways can you bring 2 calculators 3 pens and 4 pencils to class?
24 ways. :)
How many ways can 2 candies be chosen out of 5 candies?
10
How many ways can 2 people be chosen from a class of 20?
20C2 = 190
How many moles of pens do you have if you have 1.204x1024 pens?
1.204*1024 pens * (1 mole pens/6.022*1023 pens) = 1.9993 molesTherefore, 1.204*1024 pens is about 2 moles of pens.
In how many ways can 4 boys be chosen from six?
The answer is 6C4 = 6*5/(2*1) = 15
2 students have to be chosen as monitor in a class of 36 how many ways to done this?
36 x 35/2 ie 630
How many ways can a committee consisting of a lead second and alternate be chosen out of 309?
309*308/2 = 47586
How many ways can you choose 2 books from the 6 on the shelf?
20, without replacing the first book chosen. 25 with replacing it.
How many different 5-card hands with 3 red cards and 2 black cards can be made from a standard 52-card deck?
There are 26 red cards and 26 black cards. 3 red cards can be chosen in 26C3 ways 2 black cards can be chosen in 26C2 ways The required answer is 26C3 X 26C2 ways. Answer: 1067742 S Suneja
If 2 pens cost 59 what will 4 pens cost?
The answer is 118
What is the best deal 5 pens for 38.99 or 2 pens for 15.99?
5 pens for 38.99 is the better deal.
Where can you find krew 2 kooky pens?
I dont think they make krew 2 kookey pens anymore, they don't even make kooky pens anymore.
