Answer: 583
/500 [hopefully that is right i am sorry if it is not i am not the best.
Step-by-step explanation:
1.166 = 583
/500
as a fraction
Each octave in the piano is composed of 8 keys with the end key overlapping the next one which means the last key is the first key of the next octave. In 52 white keys, there are 7 octaves which is composed of 43 full keys and 7 overlapping keys. Answer to this problem is 7 octaves.
.08x+ 16(18000-x)=2000
.06x+2880-.16x=2000
2880-10x=2000
-2880 -2880
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-10x= -880
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/10 /10
x=-88