Question

А) 7,4-7,2+0,6-2,8 б) 7/9*0,27+0,73*7/9 полный ответ

Answer 1

Ответ:

Объяснение:

а) 7,4-7,2+0,6-2,8=( 7,4 +0,6) - (7,2+2,8)= 8- 10=-(10-8)= -2

б) 7/9*0,27+0,73*7/9 =7/9* (0,27+0,73)=7/9* 1=7/9

Answer 2

Ответ:

Объяснение:

.........

Answer 3

а) To solve the expression 7.4 - 7.2 + 0.6 - 2.8, we can follow the order of operations (also known as PEMDAS/BODMAS).

7.4 - 7.2 + 0.6 - 2.8 = (7.4 - 7.2) + 0.6 - 2.8 = 0.2 + 0.6 - 2.8 = 0.8 - 2.8 = -2

So, the value of the expression is -2.

б) For the expression 7/9 * 0.27 + 0.73 * 7/9, we can simplify it step by step:

7/9 * 0.27 + 0.73 * 7/9 = (7 * 0.27)/(9) + (0.73 * 7)/(9) = 1.89/9 + 5.11/9 = (1.89 + 5.11)/9 = 7/9

Therefore, the value of the expression is 7/9.