Question

1. 30000 – (1 846 + 335104 : 476) = (1599 + 20050 : 25) х 63 = 28 х 270 + (4478 – 1 598) : 144 х 105 = 2. 3 210 – у = 665 : 7 а : 6 = 54 х 8 3. 7 ч 25 мин – 3 ч 45 мин = 9 т 385 кг + 6 т 935 кг = 13 км 250 м – 8 км 480 м =

Answer 1

№1

30000 - (1 846 + 335104/476) = 27 450

(1599+20050/25)*63= 151 263

28*270+(4478-1598)/144*105 = 9 660

№2

1) 3210-у=665/7

3210-у=95

3210-95=3115

у=3 115

2) а/6=54*8

а/6=432

432*6=2595

а=2 592

№3

7 ч 25 мин-3 ч 45 мин = 3 ч 40 мин

9 т 385 кг + 6 т 935 кг = 16 т 320 кг

13 км 250 м - 8 км 480 м = 4 км 770 м

Answer 2

Let's break down these mathematical expressions step by step:

1. First, solve the expression inside the parentheses: 335104 ÷ 476 = 703

   Now, subtract the result from 1846: 30000 - (1846 + 703) = 30000 - 2549 = 27451

   Next, solve the expression on the right side of the equation: (1599 + 20050 ÷ 25) × 63 = (1599 + 802) × 63 = 2401 × 63 = 151263

   Finally, solve the last part of the equation: 28 × 270 + (4478 - 1598) ÷ 144 × 105 = 7560 + 2880 × 105 = 7560 + 302400 = 310960

2. First, divide 665 by 7: 665 ÷ 7 = 95

   Next, multiply the result by 6: 95 × 6 = 570

   Now, subtract 570 from 3210: 3210 - 570 = 2640

3. Subtract the time values: 7 hours 25 minutes - 3 hours 45 minutes = 3 hours 40 minutes

   Add the weight values: 9 tons 385 kilograms + 6 tons 935 kilograms = 16 tons 320 kilograms

   Subtract the distance values: 13 kilometers 250 meters - 8 kilometers 480 meters = 4 kilometers 770 meters

So, the solutions are:

1. 27451
2. 2640
3. 3 hours 40 minutes, 16 tons 320 kilograms, 4 kilometers 770 meters