Seudónimo
Seudónimo
03-05-2018
Mathematics
contestada
Some algebra help is needed, y'all <3
Respuesta :
fatehahnordin9p7wo43
fatehahnordin9p7wo43
03-05-2018
42 = piano and/or guitar
26 = guitar
33 = piano
19 = piano and guitar
piano only = 33 - 19
= 14
guitar only = 26 - 19
= 7
total played = 19 + 14 + 7
= 40
Total musicians = 42
not played = 42 - 40
= 2
the answer for first column under the "piano"
play guitar = 19
Don't play guitar = 14
Total = 33
the answer for second column under the "Don't play piano"
play guitar = 7
Don't play guitar = 2
Total = 9
the answer for third column under the "Total"
play guitar = 26
Don't play guitar = 16
Total = 42
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