Final answer:
The expression (5+4)·5+3·3 is evaluated by first calculating the sum inside the parentheses, then performing the multiplication, and finally, adding the results together to get 54.
Step-by-step explanation:
To evaluate the expression (5+4)·5+3·3 using the correct order of operations, we need to follow the sequence: parentheses first, then exponents (if any), multiplication and division (from left to right), and addition and subtraction (from left to right).
Let's solve the expression step by step:
- Solve the expression inside the parentheses: (5+4) becomes 9.
- Multiply the result by 5: 9·5 equals 45.
- Add the product of 3·3, which is 9, to the result from step 2.
- 45 + 9 equals 54.
Therefore, the expression evaluates to 54.