Question
Gil rolls a number cube 78 times. How many times can he expect to roll an odd number greater than 1??
Answers
visoth
im assuming its just a regular number cube with 6 numbers
there are only 2 odd numbers above 1 ( 3 and 5)
so the ratio is 2/6
you want to know how manny times (x) will you roll those numbers out of 78 roll
the ratio is x/78
multiply
(2/6) = (x/78)
cross multply to give you 6x= 156 and divide by 6
to give you x = 26
there are only 2 odd numbers above 1 ( 3 and 5)
so the ratio is 2/6
you want to know how manny times (x) will you roll those numbers out of 78 roll
the ratio is x/78
multiply
(2/6) = (x/78)
cross multply to give you 6x= 156 and divide by 6
to give you x = 26
Jessica
Thanks :)
Anne
Great answer and great way to explain. I would do the same thing. This is easy for me
ajkcsm
thnks
Anonymous
26
Anonymous
167
26 cross multiply
26 cross multiplt and get of this website kids and do your work im a teacher at school thank you i will be emailing the schools warning them about this
bob
I sill don't understand why you didn't count the rest of the odd numbers.
a shoebox holds a number of disks of the same size there are 5 red 6 white and 7 blue disks you pick out a disk record its color and return it to the box if you repeat this process 250 times how many times can you expect to pick either a red or whit disk?