SAT College

4x - 5y = 15
2x - y = 9
5. In the system of equations shown above, what is the value of 3x – 3y?
A) 9
B) 12
C) 15
D) 24

Answers

Answer 1
solution is (5,1)
3(5) - 3(1)
15 - 3 = 12
the answer is B

Related Questions

The further apart the objects are, the ___ the force of gravity

Answers

The Distance Between the Objects As distance between the objects increases, the force of gravity decreases.

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

What are the main two sources of a natural fibres?

Answers

Natural fibres can be classified according to their origin. The vegetable, or cellulose-base, class includes such important fibres as cotton, flax, and jute. The animal, or protein-base, fibres include wool, mohair, and silk. An important fibre in the mineral class is asbestos.

What term refers to the high and low frequencies that we hear in music
A
scale
B.
rhythm
С.
syncopation
D.
meter
E
pitch

Answers

e. pitch

hope that helps

Answer: E: pitch

Explanation:

got it right on edmentum, good luck!

Lisa wants to write an email to her teacher to ask for clarification on a project she is working on in class. How should she
address her teacher in the
email?

Hi!

Dear Mrs. Smith

Hi, teacher,

Hey.

Answers

Answer:

Dear Mrs. Smith

Explanation:

it is respectful to use Mrs and it is common courtesy to use the word dear

dear mrs. smith is the most professional opinion

Give examples of

Plant fibres
Animal fibres
Regenerated fibres
Synthetic fibres ?

Answers

1) cotton
2)feathers
3)viscose
4)nylon

Identify the types of sampling errors that exist in the following sampling designs: (4 points)

The local newspaper plans to make a prediction for a senatorial election based on a survey returned by a portion of its readers.
A radio show asks people to phone in their views on whether the United States should pay off its debt to China.
A new social media website chooses to survey the first 50 members who join to determine whether members favor the appearance of the homepage.

Your answer:

Voluntary
Nonresponse
Convenience

Nonresponse
Voluntary
Convenience

Nonresponse
Convenience
Voluntary

Voluntary
Convenience
Nonresponse

Convenience
Voluntary
Nonresponse

Answers

Answer:

the answer is NOT voluntary, convenience, nonresponse.

Explanation:

I got it wrong with this answer

The types of sampling errors that exist in the following sampling designs will be nonresponse, voluntary, and convenience.

For the first question, it should be noted that everyone cannot respond as only the people who have strong opinions will respond. Therefore, it's a nonresponse error.

For the second question, the people will have to volunteer. Therefore, it's a voluntary bias while the third one is a convenience sample as it's an easily available sample.

Read related link on:

https://brainly.com/question/19452571

After studying living organisms in class, Destiny concluded that if all the plants in an ecosystem could not get sunlight for a long period of time, all the plants and animals in that area would die. Do you agree with Destiny? State your claim, provide evidence, and use scientific reasoning to prove you are correct. (Science CER)

Answers

Answer:

yes

Explanation:

because when living organisms need light to live

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