Which sentence below represents the number of test questions in the problem below?

a test is worth 80 points. multiple-choice questions are worth 2 points, and short-answer questions are worth 4 points. if the test has 25 questions, how many multiple choice questions are there?

a. the number of multiple-choice questions plus the number of short-answer questions is 25.
b. the number of multiple-choice questions times the number of short-answer questions is 25.
c. the number of multiple-choice questions minus the number of short-answer questions is 80.
d. the number of multiple-choice questions plus the number of short-answer questions is 80.

there are 10 multiple choice questions and 15 short-answer questions

Step-by-step explanation:

Let x represent the number of multiple choice questions in the test.

Let y represent the number of short-answer questions in the test.

If the test has 25 questions, it means that

x + y = 25

Multiple-choice questions are worth 2 points, and short-answer questions are worth 4 points. The test is worth a total of 80 points. It means that

2x + 4y = 80 - - - - - - - -1

Substituting x = 25 - y into equation 1, it becomes

2(25 - y) + 4y = 80

50 - 2y + 4y = 80

- 2y + 4y = 80 - 50

2y = 30

y = 30/2 = 15

x = 25 - y = 25 - 15 = 10

A. The number of multiple-choice questions plus the number of short-answer questions is 25.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (