Question

Помогите!! Нопишите с Решением!! 4,8 × 38,4+4,8×61,6= 2,3×0,75+2,3×10,2-2,3-0,95= 1) 3,5(6-4²)+ 2/3 × 3²= 2) 7,8 (6²+64)-3/5×10²= С РЕШЕНИЕМ!!!

Answer 1

1.Чтобы было удобней решать, надо домножить на 10, получается
48×384+48×616=18432+29568=48000:10=4800
2.Чтобы было удобней решать, надо домножить на 100, получается
230×75+230×1020-230-95=230(75+1020)-230-95=2515,25
1)3,5(6-4²)+2/3×3²= -35+6= -29
2)7,8(6²+64)-3/5×10²=780-60=720
С РЕШЕНИЕМ!!!

Answer 2

Calculations

1) 4.8 × 38.4 and 4.8 × 61.6

To calculate 4.8 × 38.4 and 4.8 × 61.6, we can use the following formulas: - 4.8 × 38.4 = 184.32 - 4.8 × 61.6 = 295.68

So, 4.8 × 38.4 = 184.32 and 4.8 × 61.6 = 295.68.

2) 2.3 × 0.75 and 2.3 × 10.2

To calculate 2.3 × 0.75 and 2.3 × 10.2, we can use the following formulas: - 2.3 × 0.75 = 1.725 - 2.3 × 10.2 = 23.46

So, 2.3 × 0.75 = 1.725 and 2.3 × 10.2 = 23.46.

3) 3.5(6-4²) + 2/3 × 3²

To solve 3.5(6-4²) + 2/3 × 3², we can use the following steps: - 6-4² = 6-16 = -10 - 3.5(-10) + 2/3 × 3² = -35 + 2/3 × 9 - -35 + 2/3 × 9 = -35 + 6 = -29

So, 3.5(6-4²) + 2/3 × 3² = -29.

4) 7.8 + (6² + 64) - 3/5 × 10²

To solve 7.8 + (6² + 64) - 3/5 × 10², we can use the following steps: - 6² + 64 = 36 + 64 = 100 - 7.8 + 100 - 3/5 × 10² = 7.8 + 100 - 3/5 × 100 - 7.8 + 100 - 3/5 × 100 = 7.8 + 100 - 60 - 7.8 + 100 - 60 = 47.8

So, 7.8 + (6² + 64) - 3/5 × 10² = 47.8.

I hope this helps! If you have any other questions or need further assistance, feel free to ask.