Question

(20-12•5)•(-63) ___________ 20•(-9) ПОЖАЛУЙСТА ПОМОГИТЕЕЕЕЕЕ!!!

Answer 1

1) (20-12×5)×(-63)= (20-60)(-63)= (-40)(-63)= 2520.

2) 20×(-9)= -180.

Answer 2

To solve this expression, we need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).

Let's break down the expression step by step:

1. Calculate the multiplication inside the parentheses: 12 • 5 = 60.
2. Subtract 20 from 60: 20 - 60 = -40.
3. Multiply -40 by -63: -40 • -63 = 2520.
4. Multiply 20 by -9: 20 • -9 = -180.

So the final result is 2520 divided by -180:

2520 ÷ -180 = -14.

Therefore, the value of the expression is -14.