Final answer:
To solve the expression 2(1.60−7)−4.90, evaluate the expression within the parentheses first, then perform the multiplication and subtraction to get the final result.
Step-by-step explanation:
To solve the expression 2(1.60−7)−4.90, we need to follow the order of operations, which is also known as PEMDAS (parentheses, exponents, multiplication and division, and addition and subtraction):
- Start by evaluating the expression within the parentheses: 1.60 - 7 = -5.40.
- Next, multiply -5.40 by 2: -5.40 * 2 = -10.80.
- Finally, subtract 4.90 from -10.80: -10.80 - 4.90 = -15.70.
Therefore, the simplified expression 2(1.60−7)−4.90 is equal to -15.70.