# maths homework help!!!!!! really simple steps please for someone whos really thick!!!?

the probability that jenny will beat gill at tennis is 3/5

the probability that jenny will gill at both tennis and snooker is 1/4

what is the probability that jenny will beat gill at snooker?

Update:

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• Anonymous
9 years ago

You have to multiply together the probabilities of Jenny beating Gill at tennis (3/5) and snooker (x) to get the probability that she'll beat him at both (1/4).

So: 1/4 = 3/5 * x

Rearranging:

x= (1/4) / (3/5)

Flip the 3/5ths so that you can multiply.

x= 1/4 * 5/3

Multiply across the top and and the bottom.

x= (1*5)/(4*3)

x= 5/12

So the probability that Jenny will beat Gill at snooker is 5/12.

• The probability of two things both happening is the product of the probabilities of both things happening.

Settup the equation:

Tennis win probability x Snooker win probability = probability of snooker and tennis win

3/5 x S = 1/4

3/5 x S = 1/4

S = (1/4) / (3/5)

S= (1/4) x (5/3)

S= 5/12