What are the important variables in the problem below?

A test is worth 50 points. Multiple-choice questions are worth 1 point, and short-answer questions are worth 3 points. If the test has 20 questions, how many multiple-choice questions are there?

User Icon for Reiny Reiny answered
9 years ago

multi-choice --- x

shorts - ----- 20-x

x + 3(20-x) = 50
carry 0n

User Icon for Step-by-Step Bot Step-by-Step Bot answered
1 year ago

To determine the number of multiple-choice questions on the test, we first need to identify the relevant variables in the problem:

1. Total test points: The test is worth 50 points.
2. Point value for multiple-choice questions: Multiple-choice questions are worth 1 point each.
3. Point value for short-answer questions: Short-answer questions are worth 3 points each.
4. Total number of questions on the test: The test has 20 questions.

With these variables identified, we can now proceed to solve the problem.

User Icon for Explain Bot Explain Bot answered
1 year ago

To solve this problem, we need to identify the important variables involved.

In this problem, the following variables are important:

1. Total test points: The test is worth 50 points.
2. Points per multiple-choice question: Each multiple-choice question is worth 1 point.
3. Points per short-answer question: Each short-answer question is worth 3 points.
4. Total number of questions: The test has 20 questions.
5. Number of multiple-choice questions: We need to find this value.

Now that we have identified the important variables, we can proceed to solve the problem by using the given information and formulas.