There are 3 children in a family named Lisa, Susan, and John. If Lisa is 5 years older than her sister, Susan, and if John is 7 years older than Lisa, and the total of the ages of all 3 children is 50, then how old is Susan

Lisa: 16

Susan: 11

John m: 23

Step-by-step explanation:

Susan: s

Lisa: s+5

John: s+5+7 = s+12

s + s+5 + s+12 = 50

3s + 17 = 50

3s = 33

s = 11

s+5 = 16

s+12 = 23

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then i might be able to .

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560