Posted by Angel on Thursday, February 21, 2013 at 5:20pm.
Archie rolls two number cubes each with sides numbered 1 through 6 he then finds the sum of the numbers on the tops of the cubes which two sums have the same probabillity?
A. 3 and 4
B. 5 and 9
C. 5 and 8
D. 10 and 12
i need the work involved and i have another question The graph of 5x2y=10 intersects the xaxis and yaxis what are the order pairs for these two points of intersection?
A.(2,0) and (0,5)
B.(2,0) and (0,5)
C.(2,0) and (0,5)
D.(2,0) and (0,5)

Math plz fast i really need it  bobpursley, Thursday, February 21, 2013 at 5:25pm
to get a 3, you need 2,1 or a 1,2
to get 4, you need 1,3, 3,1;2,2
b. to get 5, 4,1;1,4;2,3;3,2
to get a 9, 5,4;4,5;6,3,3,6 equal probablility for 5 and 9
c. 5 you need 4,1;1,4; 2,3;3,2
8 tyou need 6,2;2,6, 5,3,3,5, 4,4
d. and so one. 
Math plz fast i really need it  Angie, Thursday, February 21, 2013 at 5:32pm
okay but can you explain it better plz

Math plz fast i really need it  Angie, Thursday, February 21, 2013 at 5:35pm
neither mind but can u help with the second

Math plz fast i really need it  JJ, Thursday, February 21, 2013 at 5:37pm
For the first part, you really need to make a table to show all of the possible sums
I suggest making a table with 1 6 across the top and 16 down the side..
Then fill in the table by adding the die.
1,1 = 2
1, 2 = 3
You may be able to find a table like this in your book or by searching google. This takes a lot of time to do by yourself.
There are 36 outcomes. You will have to see how many times each sum comes up to answer the question.
For part 2 To find the x or y  intercepts
First you let x = 0 and find y
then you let y = 0 and find x.
Remember (x,y) is the ordered pair.
(x, 0) and (o, y)
replace x and y with the values you found. 
Math plz fast i really need it  Angie, Thursday, February 21, 2013 at 5:43pm
i don't get it
can you explain it better plz 
Math plz fast i really need it  Knights, Thursday, February 21, 2013 at 5:50pm
to get sum of 1 = 0.
to get sum of 2 = 1/36 since there are 6 options on each die and two die so 6*6 = 36. And the only way to get two is 1+1
to get sum of 3 = 1+2, 2+1, so 1/18
to get 4 = 1,3 2,2 3,1 so 1/12
to get 5 = 2,3 3,2 1,4 4,1 so 1/9
etc etc etc
so after writing them all down, we find that 5 and 9 are equal:
to get 5 = 2,3 3,2 1,4 4,1 so 1/9
to get 9 = 3,6 6,3 4,5 5,4 so 1/9
no other ones because the die only has 6 numbers.
so the answer is B