9 – 3 ÷ 1/3 + 1 = ?

Math question image

Answer

Answer: 2

Explanation:
This problem involves the order of operations (PEMDAS/BODMAS), which dictates the sequence in which mathematical operations should be performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). The key here is to correctly interpret the division and multiplication signs and their order.

Method/Theorem Used:

  • Order of Operations (PEMDAS/BODMAS): Ensures correct sequence of calculations.
  • Associativity of multiplication and division: Both are performed from left to right when at the same level.

Steps:

  1. The original expression is:

\[ 9 - 3 \div 3 \times \frac{1}{3} + 1 \]

  1. According to the order of operations, perform division and multiplication from left to right:
  • First, compute \( 3 \div 3 \):

\[ 3 \div 3 = 1 \]

  • Next, multiply this result by \(\frac{1}{3}\):

\[ 1 \times \frac{1}{3} = \frac{1}{3} \]

  1. Now, substitute back into the expression:

\[ 9 - \frac{1}{3} + 1 \]

  1. Perform subtraction and addition from left to right:
  • Subtract \(\frac{1}{3}\) from 9:

\[ 9 - \frac{1}{3} = \frac{27}{3} - \frac{1}{3} = \frac{26}{3} \]

  • Add 1 (which is \(\frac{3}{3}\)):

\[ \frac{26}{3} + \frac{3}{3} = \frac{29}{3} \]

Final result:

\[ \boxed{\frac{29}{3}} \]

However, since the options are typically simplified or expressed as a decimal, the approximate value is:

\[ \frac{29}{3} \approx 9.666\ldots \]

But if the question asks for a simplified fraction, the answer is \(\frac{29}{3}\). If the options are integers, then the closest integer is 10, but based on the exact calculation, the precise answer is \(\frac{29}{3}\).

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