Question

90:3080:405•20-1674-60:27•(42 -34)(36 +36):9​

Answer 1

1) 90:30 = 3

2) 80:40 = 2

3) 5*20-16 = 100-16 = 84

4) 74-60:2 = 74-30 = 44

5) 7*(42-34) = 7*8 = 56

6) (36+36):9 = 72:9 = 8

Answer 2

To evaluate the given expression:

90:3080:405 • 20-1674-60:27 • (42-34)(36+36):9

Let's break it down step by step:

Step 1: Evaluate the expression inside the parentheses: (42 - 34) = 8 (36 + 36) = 72

Step 2: Evaluate the division and multiplication operations from left to right: 90 ÷ 3080 = 0.0292207792 0.0292207792 × 405 = 11.833333344

Step 3: Evaluate the subtraction and addition operations from left to right: 20 - 1674 = -1654 -1654 - 60 = -1714 -1714 ÷ 27 = -63.4814815104 -63.4814815104 × 72 = -4567.407407518 -4567.407407518 ÷ 9 = -507.4897119464

Therefore, the result of the expression 90:3080:405 • 20-1674-60:27 • (42-34)(36+36):9 is approximately -507.4897119464.