# What sentence represents the number of test questions in the problem below? a test is

4 answers

###### Question:

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

## Answers

beluga wheeeaaalle matt

step-by-step explanation:

The first thing we must do for this case is to define variables.

We have then:

x = Multiple-choice questions

y = short-answer questions

We write the following system of equations:

2x + 4y = 80

x + y = 25

Solving the system of equations we have:

x = 10

y = 15

there are 10 multiple-choice questions

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

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