Question

А) -13,6*(-7,2 + 313,2 : 8,7) Б) -16,3*(-8,3 + 212,8 : 7,6) В) -9,396 : 2,7 - 0,2*1,7 Г) -0,8*1,6 - 14,911 : 3,7

Answer 1

A)1)313.2:8.7=36
2)-7.2+36=28.8
3)-13.6*28.8=146.88

Answer 2

Let's calculate the given expressions:

А) -13.6 * (-7.2 + 313.2 / 8.7)

Step 1: Evaluate the expression inside the parentheses first. -7.2 + 313.2 / 8.7 = -7.2 + 36 = 28.8

Step 2: Multiply -13.6 by 28.8 -13.6 * 28.8 = -391.68

Б) -16.3 * (-8.3 + 212.8 / 7.6)

Step 1: Evaluate the expression inside the parentheses first. -8.3 + 212.8 / 7.6 = -8.3 + 27.9473684211 (approximately 27.95)

Step 2: Multiply -16.3 by 27.95 -16.3 * 27.95 = -455.185

В) -9.396 / 2.7 - 0.2 * 1.7

Step 1: Perform the division. -9.396 / 2.7 = -3.4755555556 (approximately -3.48)

Step 2: Multiply -0.2 by 1.7 -0.2 * 1.7 = -0.34

Step 3: Subtract the result of the multiplication from the result of the division. -3.48 - 0.34 = -3.82

Г) -0.8 * 1.6 - 14.911 / 3.7

Step 1: Multiply -0.8 by 1.6 -0.8 * 1.6 = -1.28

Step 2: Perform the division. -14.911 / 3.7 = -4.0340540541 (approximately -4.03)

Step 3: Subtract the result of the division from the result of the multiplication. -1.28 - (-4.03) = -1.28 + 4.03 = 2.75

So, the final results are: А) -391.68 Б) -455.185 В) -3.82 Г) 2.75