`425 -16.95 xx ? = 225`

Options

A. a. 11
B. b. 0.8
C. c. 9
D. d. 0.9

Answer

To solve the equation \( 425 - 16.95 \times ? = 225 \), we will follow these steps:

### Step 1: Rearranging the Equation
We start by isolating the term with the question mark. We can do this by moving \( 225 \) to the left side of the equation:
\[ 425 - 225 = 16.95 \times ? \]

### Step 2: Simplifying the Left Side
Now, we calculate \( 425 - 225 \):
\[ 425 - 225 = 200 \]
So, the equation now looks like:
\[ 200 = 16.95 \times ? \]

### Step 3: Isolating the Question Mark
Next, we will isolate the question mark by dividing both sides of the equation by \( 16.95 \):
\[ ? = \frac{200}{16.95} \]

### Step 4: Performing the Division
Now, we perform the division:
\[ ? \approx \frac{200}{17} \quad \text{(approximating \( 16.95 \) to \( 17 \) for easier calculation)} \]
Calculating this gives:
\[ ? \approx 11.76 \]

### Step 5: Rounding the Result
Since we are asked for an approximate value, we can round \( 11.76 \) to the nearest whole number:
\[ ? \approx 12 \]

### Final Answer
Thus, the approximate value of the question mark \( ? \) is:
\[ ? \approx 12 \]