j015
25.02.2021 •
Mathematics
PLS HELP I'LL MARK BRAINLIEST
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Ответ:
Ответ:
5x + 90+3x+2=180
5x+3x+2+90=180
8x+92=180
8x=180-92
8x=88
x=88/8
x=11
Ответ:
10%=15
With this ratio, we need the percentage at 100%
100%=150
If there are 150 students, let check.
30÷150
.2×100
20
There are 150 kids.