Question

13000- (65•28-18•65) +90• (49•147 - 15:49-49•132).​

Answer 1

Ответ:78472.46

Пошаговое объяснение:13000-(1820-1170)+90(7203-0.306-6468)=13000-650+66122.46=78472.46

Answer 2

Ответ:

65:13+(45-15)×30=905

78:3-(90:18)+53=74

24×3-48:6+90:5=82

15×4+91:13-49=18

Answer 3

Let's break down and solve the expression step by step:

1. Calculate the terms inside the parentheses:

   • $65 \cdot 28 - 18 \cdot 65 = 1820 - 1170 = 650$
   • $49 \cdot 147 - 15:49 - 49 \cdot 132$
     • $15:49$ could mean either 15 divided by 49 or 15 minutes and 49 seconds, so I'll assume it's division: $15 \div 49 = 0.306122449$
     • $49 \cdot 132 = 6468$
     • $49 \cdot 147 - 0.306122449 - 6468 = 7203 - 0.306122449 - 6468 = 732.693877551$

2. Calculate the multiplication and additions:

   • $13000 - 650 + 90 \cdot 732.693877551$
     • $90 \cdot 732.693877551 = 65942.4489796$
     • $13000 - 650 + 65942.4489796 = 79092.4489796$

So, the result of the expression $13000 - (65 \cdot 28 - 18 \cdot 65) + 90 \cdot (49 \cdot 147 - 15:49 - 49 \cdot 132)$ is approximately $79092.4489796$.