diketahui fungsi f: x ➡2/3 (x-6),jika f(a) =10,maka tentukan nilai a
Matematika
alfian1212
Pertanyaan
diketahui fungsi f: x ➡2/3 (x-6),jika f(a) =10,maka tentukan nilai a
1 Jawaban
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1. Jawaban GiralGayartanta
f(x) = 2/3 (x-6)
f(a) = 2/3 (a-6) = 10
a - 6 = 10 ÷ 2/3
a - 6 = 10 × 3/2
a - 6 = 15
a = 21