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convert each fraction to a decimal number and that will allow you to compare the numbers easier
for example 1/30 = 0.0333333... 1/15 = 0.0666667 So we can see that 1/15 is larger than 1/30 since 0.0666667 is larger than 0.033333
so it would be b?
if you just had those two fractions, yes but you need to compare the rest of the fractions
c is 0.1 and d is 0.13 so than it would be d than?
oh okay thank you,
that's the combination of choosing 7 things out of 9 basically it's asking "how many ways are there to choose 7 items out of 9 where order does not matter"
I don't understand, cause the choices are A.66 B.55 C.36 D.45
have you learned about permutations?
no , this is online math,
I figured that, but I would have also figured that you have learned about permutations or combinations by now
seems odd how they skipped over that
No, it was never on any of the information given to me for each section,
well luckily we can take advantage of the fact that 9 C 7 = 9 C 2 9 C 2 = (9*8)/2 = ???
so 9 C 7 = 36 as well
you can also use Pascals triangle to get the same thing
what about this? If a probability distribution is 5/12,1/6 ,1/4 , x, what is the value of x? A.1/3 B.1/6 C.1/12 D.1/4
add up all the fractions including x and set it equal to 1 then solve for x
5/12 + 1/6 + 1/4 + x = 1 solve this for x
i don't know, 7/22?
oh wait, one sec
i don't undersad
what do you get when you combine these fractions 5/12 + 1/6 + 1/4
i don't know , cause they have different numbers do i need them both to get 12?
yes you need all the denominators to be equal to 12
you multiply 6 with 2 and 4 with 3 ,
5/12 = 5/12 1/6 = 2/12 1/4 = 3/12 ----------------- 5/12 + 1/6 + 1/4 is the same as 5/12 + 2/12 + 3/12
10/12 reduced to 5/6?
thaat not right
we're not done yet
but we're on the right path to getting there
okay whats next?
5/12 + 1/6 + 1/4 + x = 1 is the same as 5/6 + x = 1 Now subtract 5/6 from both sides to isolate x 5/6 + x - 5/6 = 1 - 5/6 x = 1 - 5/6 x = ???
4/6 reduced to 2/3? but that not on there either?
no not this |dw:1359342264313:dw| but this |dw:1359342279294:dw|
so it be 1/5?
Is it okay if i just message you and you help me please?
sure, but I don't want to do every problem for you just letting you know