oof4457
10.12.2020 •
Mathematics
LIT
9
Jadual 3 menunjukkan bilangan murid lelaki dan murid
perempuan di dalam tiga buah kelas Tahun 4.
Kelas
4 Alpha
4 Beta
4 Gamma
Lelaki
8
10
18
Perempuan
22
15
7
Jadual 3
(a)
Kira peratusan murid perempuan daripada jumlah semua
murid Tahun 4.
[2 markah]
Solved
Show answers
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Ответ:
Step-by-step explanation:
the 2nd line can be rewritten as y < x-3
So, any value that is less than both 4x+4 and x-3 will work
Pick any value you want for x, and figure y possibilities
x=0; x-3=-3, 4x+4=4, so y<-3 ... (0,-5) will work
I'm sure you can now come up with other pairs.