Question

Applying the Stifel ratio in (9/5)+(9/6) yields:

(a) 3.4
(b) 2.8
(c) 4.2
(d) 1.6

Answer 1

The sum of the fractions (9/5) and (9/6) equals to 3.3. None of the provided answer choices are correct, indicating there may have been an error in the question. The 'Stifel ratio' does not apply to basic arithmetic operations involving fractions.

Step-by-step explanation:

The question asks to apply the Stifel ratio to the expression (9/5) + (9/6). First, we must calculate the values of the two fractions and then add them together.

The first fraction 9/5 can be calculated as follows:

• 
  
• 9 ÷ 5 = 1.8

The second fraction 9/6 can be calculated as:

• 
  
• 9 ÷ 6 = 1.5

Adding these two values together:

• 
  
• 1.8 + 1.5 = 3.3

The final result is 3.3, which means none of the options provided (a) 3.4, (b) 2.8, (c) 4.2, (d) 1.6 is correct. There appears to be a mistake as the correct answer is not listed among the options.

If the student meant the 'Stiefel ratio', it does not apply here as this concept is not recognized in the context of simple fraction addition. So, the simple arithmetic operation was performed instead.