Answer:
Step-by-step explanation:
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A+b=15----(1)
a*b=54----(2)
(1) a=15-b ----(3)
put(3) in(2)
(15-b)*b=54
15b-b^2=54
b^2-15b+54=0
(b-9)(b-6)=0
so b=9 or b=6
if b=9 then a=15-9=6
if b=6 then a=15-6=9
answer two numbers are 6 and 9
1.6 is = to 1 6/10 = 1 3/5
so 1.6 in simplest form is 1 3/5
Hope this helps! :D