Ada 10 pensil.7 pensil berwarna biru.persentase pensil berwarna biru adalah....
Answer (3)
( 'x' is not 144 .)
The supplement of an angle is (180 - x) . The problem says that (2/3) of 'x' is equal to (180 - x) .
180 - x = 2/3 x
Multiply each side by 3 : ( Note: 3 x 180 = 540 .)
540 - 3x = 2x
Add 3x to each side:
540 = 5x
Divide each side by 5 :
x = 108° .
The angle measures 108° , and its supplement measures 72° .
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Jawaban:[tex]70\%[/tex]Penjelasan dengan langkah-langkah:[tex]100\% \times \frac{7}{10} \\ = 70\%[/tex] maaf klo salah
