Найдите значение выражения:
1) 67,8a + 3/25 при a = 10;
2) 7/20 + 0,65b при b = 100;
3) 0,002a - 3/4 при a = 1000;
4) 4/5 - 0,003b при b =100.
1) 67,8a + 3/25 при a = 10;
2) 7/20 + 0,65b при b = 100;
3) 0,002a - 3/4 при a = 1000;
4) 4/5 - 0,003b при b =100.
Answers & Comments
7/20+0,65b=0.35+0.65b= 0.35+0.65*100=0.35+65=65.35
0.002a-3/4=0.002a-0.75=0.002*1000-0.75=2-0.75=1.25
4/5-0.003b=0.8-0.003b=0.8-0.003*100=0.8-0.3=0.5
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