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ElenaW [278]
3 years ago
5

A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is

the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation.
x + y = 24

3x + 5y = 100

What does the solution of this system indicate about the questions on the test?

The test contains 4 three-point questions and 20 five-point questions.

The test contains 10 three-point questions and 14 five-point questions.

The test contains 14 three-point questions and 10 five-point questions.

The test contains 20 three-point questions and 8 five-point questions.
Mathematics
1 answer:
Serhud [2]3 years ago
4 0

Answer:

It has 10 three-point questions and 14 five-point questions

Step-by-step explanation:

Substitution (look it up it takes a long time to explain lol)

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Answer:

Step-by-step explanation:

A rectangle has 4 sides.

2 of them are lengths and 3 of them are widths.

We can simply use coordinate geometry (without graphing) to find side lengths of the rectangle. We will use Distance Formula.

We can find all the 4 lengths by using Distance Formula from points:

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Note, that we don't need to find all 4 of them individually, because 2 are lengths (same) and 2 are widths (same). Thus we can find

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also

Distance of XY which would be same as distance of WZ

<em><u>Note:</u></em> Distance Formula is  D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}  where D is the distance, x_1, y_1 is the first coordinate points and x_2,y_2 is the second coordinate points

4 0
3 years ago
Find the volume of the cylinder.
Aneli [31]

Answer:

144π or 452.16 units³

Step-by-step explanation:

The formula for volume of a cylinder is \pi r^2 h. We can use the given values for radius and height to find the volume of the cylinder.

<h3>Finding the Volume</h3>

V=\pi r^2 h\\V=\pi6^2(4)\\V=\pi36(4)\\V=144\pi \ OR\ 452.16

The volume of the cylinder is 144π or 452.16 units³.

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there is a spinner with 12 equal areas numbered one through 12 The Spinners spun one time what is the probability that the resul
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Answer:

Step-by-step explanation:

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