philipa says that (27 - 9) x 3 divide by 9 + 18 = 42

Question

she is correct
she is not correct.The correct answer is 2
she is not correct. The correct answer 24
she is not correct. The correct answer is 26.

Answer 1

To evaluate Philipa's expression, we should follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication/Division (from left to right)
4. Addition/Subtraction (from left to right)

Let's break it down step by step:

Given expression: \((27 - 9) \times 3 \div 9 + 18\)

1. Calculate inside the parentheses: \[ 27 - 9 = 18 \]

2. Substitute back into the expression: \[ 18 \times 3 \div 9 + 18 \]

3. Next, perform the multiplication: \[ 18 \times 3 = 54 \]

4. Now substitute that result: \[ 54 \div 9 + 18 \]

5. Then, perform the division: \[ 54 \div 9 = 6 \]

6. Now substitute that: \[ 6 + 18 \]

7. Finally, perform the addition: \[ 6 + 18 = 24 \]

So, the correct answer is 24. Philipa is not correct.