If W : 0. 80 :: 9 : 6, W = ?
A. 2.5
B. 1.1
C. 3.3
D . 1.2

Options

A. B
B. C
C. A
D. D

Answer

To solve the problem where W : 0.80 :: 9 : 6, we can set up a proportion and solve for W step by step.

### Step 1: Set up the proportion
We can express the given proportion as:
\[ \frac{W}{0.80} = \frac{9}{6} \]

### Step 2: Cross-multiply
To eliminate the fractions, we can cross-multiply:
\[ W \cdot 6 = 0.80 \cdot 9 \]

### Step 3: Calculate the right side
Now, calculate \(0.80 \cdot 9\):
\[ 0.80 \cdot 9 = 7.2 \]
So, we have:
\[ 6W = 7.2 \]

### Step 4: Solve for W
Now, divide both sides by 6 to isolate W:
\[ W = \frac{7.2}{6} \]

### Step 5: Perform the division
Calculating \( \frac{7.2}{6} \):
\[ W = 1.2 \]

### Final Answer
Thus, the value of W is:
\[ W = 1.2 \]