Solved on Mar 07, 2024

Simplify the expression 3.5+2.25÷0.756183.5+2.25 \div 0.75-6 \cdot \frac{1}{8} and select the correct answer.

STEP 1

Assumptions
1. We will follow the order of operations, also known as PEMDAS/BODMAS (Parentheses/Brackets, Exponents/Orders, Multiplication and Division from left to right, Addition and Subtraction from left to right).
2. Division and multiplication have the same precedence and are performed from left to right.
3. Addition and subtraction also have the same precedence and are performed from left to right.

STEP 2

First, we need to perform the division operation.
3.5+2.250.756183.5 + \frac{2.25}{0.75} - 6 \cdot \frac{1}{8}

STEP 3

Calculate the division.
2.250.75=3\frac{2.25}{0.75} = 3

STEP 4

Replace the division with its result in the original expression.
3.5+36183.5 + 3 - 6 \cdot \frac{1}{8}

STEP 5

Next, we perform the multiplication operation.
618=686 \cdot \frac{1}{8} = \frac{6}{8}

STEP 6

Simplify the fraction.
68=34\frac{6}{8} = \frac{3}{4}

STEP 7

Convert the fraction to a decimal.
34=0.75\frac{3}{4} = 0.75

STEP 8

Replace the multiplication with its result in the original expression.
3.5+30.753.5 + 3 - 0.75

STEP 9

Now, we perform the addition and subtraction from left to right.
3.5+3=6.53.5 + 3 = 6.5

STEP 10

Subtract the last term from the result of the addition.
6.50.75=5.756.5 - 0.75 = 5.75
The simplified result of the expression 3.5+2.25÷0.756183.5+2.25 \div 0.75-6 \cdot \frac{1}{8} is 5.755.75.
Therefore, the correct answer is B. 5.75.

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