Final answer:
The given mathematical expression can be solved using the order of operations (PEMDAS). By performing the operations in parentheses and then the division, and finally the subtraction, the final result of the expression is -18.75.
Step-by-step explanation:
The equation that you're asking to solve is: 1(1+0.25)-5/0.25. The first thing you should do is abide by the order of operations, which in mathematics is often remembered by the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
So, for your equation, you would perform the operation in parentheses first: 1(1+0.25) would be 1*1.25 = 1.25.
Then, your next step would be to solve the division in -5/0.25, which equals -20.
This will finally give you: 1.25 - 20 = -18.75.
So, 1(1+0.25)-5/0.25 = -18.75.
Learn more about Order of Operations