问题


There is a single choice question about elementary mathematics. Answer the question by replying A, B, C or D.
Question: A salad dressing is made by combining 2 parts vinegar with 5 parts oil. How many ounces of oil should be mixed with 9 ounces of vinegar?
A. 2
B. 3.6
C. 22.5
D. 63
Answer:

答案

模型 模型答案 正确答案
金声玉亮2.0

C. 22.5
C
deepseekr1

The salad dressing requires a ratio of 2 parts vinegar to 5 parts oil. For 9 ounces of vinegar, we set up the proportion \( \frac{2}{5} = \frac{9}{x} \). Solving for \( x \), cross-multiply to get \( 2x = 45 \), so \( x = 22.5 \). Alternatively, each "part" equals \( \frac{9}{2} = 4.5 \) ounces, and 5 parts oil equal \( 5 \times 4.5 = 22.5 \).

Answer: C
C
gpto1 C C
GPT-4o To solve this problem, we need to maintain the given ratio of vinegar to oil, which is 2 parts vinegar to 5 parts oil.

First, determine how many times the 2 parts of vinegar fit into 9 ounces:
\[ \frac{9 \text{ ounces of vinegar}}{2 \text{ parts vinegar}} = 4.5 \]

Next, since the ratio is 2 parts vinegar to 5 parts oil, we multiply 4.5 by 5 to find the corresponding amount of oil:
\[ 4.5 \times 5 = 22.5 \text{ ounces of oil} \]

So, the correct answer is:
\[ \boxed{C} \]
C
llama3.1-70B-Instruct

C
C
llama3.1-405B-Instruct

C. To solve this problem, we can set up a proportion based on the given ratio of vinegar to oil, which is 2:5. Let x be the amount of oil needed to mix with 9 ounces of vinegar.

2/5 = 9/x

Cross-multiplying gives us:

2x = 45

Dividing both sides by 2 gives us:

x = 22.5

Therefore, 22.5 ounces of oil should be mixed with 9 ounces of vinegar.
C
DeepSeek-Coder-V2 B. 3.6 C
Qwen2-72B-Instruct C. 22.5 C
baichuan4 B C
doubao C. 22.5

If 2 parts vinegar is mixed with 5 parts oil, then the ratio of vinegar to oil is 2:5. If there are 9 ounces of vinegar, let x be the amount of oil. So 2/5 = 9/x. Cross multiplying gives 2x = 45, and x = 22.5 ounces of oil.
C
minimax To solve this problem, we need to maintain the ratio of vinegar to oil, which is 2:5. If we have 9 ounces of vinegar, we need to find out how many ounces of oil will be in the same ratio.

Let's set up a proportion to solve for the amount of oil (x):

2 parts vinegar / 5 parts oil = 9 ounces vinegar / x ounces oil

Now, cross-multiply to solve for x:

2 * x = 5 * 9
2x = 45
x = 45 / 2
x = 22.5

So, 22.5 ounces of oil should be mixed with 9 ounces of vinegar.

The correct answer is C. 22.5.
C
kimi C. 22.5 C
wenxinyiyan C. 22.5
To determine the correct amount of oil to mix with 9 ounces of vinegar, we can use the given ratio of vinegar to oil in the salad dressing. The ratio is 2 parts vinegar to 5 parts oil.
We can set up a proportion to solve this problem:
(vinegar parts / oil parts) = (vinegar ounces / oil ounces)
Plugging in the given values, we have:
(2 / 5) = (9 / oil ounces)
To solve for the oil ounces, we can cross multiply:
2 * oil ounces = 9 * 5
2 * oil ounces = 45
oil ounces = 45 / 2
oil ounces = 22.5
So, 22.5 ounces of oil should be mixed with 9 ounces of vinegar to maintain the desired ratio.
C
zhipu To solve this problem, we need to maintain the ratio of vinegar to oil as 2 parts vinegar to 5 parts oil.

First, let's determine the ratio:
- Vinegar:Oil = 2:5

Given that we have 9 ounces of vinegar, we need to find how much oil is required to maintain this ratio.

Let \( x \) be the ounces of oil needed. We set up the proportion based on the given ratio:
\[ \frac{2}{5} = \frac{9}{x} \]

Now, solve for \( x \):
\[ 2x = 5 \times 9 \]
\[ 2x = 45 \]
\[ x = \frac{45}{2} \]
\[ x = 22.5 \]

So, the correct amount of oil needed is 22.5 ounces.

Therefore, the answer is:
C. 22.5
C
gpto1 C C
deepseekv3 To solve this problem, we need to determine how many ounces of oil should be mixed with 9 ounces of vinegar, given the ratio of vinegar to oil is 2:5.

### Step 1: Understand the Ratio
The ratio of vinegar to oil is **2 parts vinegar : 5 parts oil**. This means for every 2 ounces of vinegar, we need 5 ounces of oil.

### Step 2: Set Up the Proportion
We are given 9 ounces of vinegar. Let \( x \) be the number of ounces of oil needed. Using the ratio, we can set up the proportion:
\[
\frac{2}{5} = \frac{9}{x}
\]

### Step 3: Solve for \( x \)
Cross-multiply to solve for \( x \):
\[
2x = 5 \times 9
\]
\[
2x = 45
\]
\[
x = \frac{45}{2}
\]
\[
x = 22.5
\]

### Step 4: Select the Correct Answer
The number of ounces of oil needed is **22.5**.

**Answer: C**
C