Question

2,3 + 7,7 * 0,3 = ? 0,641 * 2,8 + 0,641 * 72 = ?

Answer 1

Первый пример
7,7*0,3=2,31. 2,3+2,31=4,61.
2-ой пример:
0,641*2,8=1,7948.
0,641*72=46,152.
1,7948+46,152=47,9468.

Answer 2

To solve these mathematical expressions, let's calculate them step by step:

1. 2.3 + 7.7 * 0.3:
   • First, multiply 7.7 by 0.3: 7.7 * 0.3 = 2.31
   • Then, add 2.3 to the result: 2.3 + 2.31 = 4.61

Therefore, 2.3 + 7.7 * 0.3 equals 4.61.

2. 0.641 * 2.8 + 0.641 * 72:
   • First, multiply 0.641 by 2.8: 0.641 * 2.8 = 1.7896
   • Then, multiply 0.641 by 72: 0.641 * 72 = 46.152
   • Finally, add the two results together: 1.7896 + 46.152 = 47.9416

Therefore, 0.641 * 2.8 + 0.641 * 72 equals 47.9416.