14/15-5/12 = 31/60
31/60 = 0.5166...
Answer:
let alpha be x and beta be y
Step-by-step explanation:
x+y= -b/a
x+y=-1/6
and xy= c/a
xy= -1/3
according to question
1/x+1/y -xy =(x+y)/xy-xy
(-1/6)/(-1/3)-(-1/3)
1/2+1/3
the answer is 5/6
15 boys and 16 girls....total is (15 + 16) = 31
probability that a boys name is drawn : boys/total ppl = 15/31
Step-by-step explanation:
a)1.8kg=1.8*1000=1800g
b)6toys=1800
1toy=300g
c)4toys=4*300=1200g=1.2kg
