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Alborosie
4 years ago
12

Which value of a would make the following statement true? -3(2x + a) = -6x + 15

Mathematics
1 answer:
klemol [59]4 years ago
6 0
Your answer is -5.
This is because, if you expand the single bracket, you get -6x -3a, and since the other side of the equals sign is -6x + 15, then you need to do 15 ÷ -3 = -5.

I hope this helps!
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questionten times a number, x, is one-half the sum of the number and three. which answer represents this situation? 10x
nataly862011 [7]

The solution of the equation 20x = x + 3 will be 3 / 19. Then the correct option is A.

<h3>What is Algebra?</h3>

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

Making anything easier to accomplish or comprehend, as well as making it less difficult, is the definition of simplification.

Ten times a number, x, is one-half the sum of the number and three. Then the equation will be

10x = 1/2(x + 3)

Simplify the equation, then we have

20x = x + 3

19x = 3

x = 3 / 19

The solution of the equation 20x = x + 3 will be 3 / 19. Then the correct option is A.

The missing options are given below.

A. 10x = 1/2(x + 3)

B. 10x = 1/2x

C. 10x = 1/2x + 3

D. 10x = (x + 3)

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ4

7 0
2 years ago
The possible ways to complete a multiple-choice test consisting of 19 questions, with each question having four possible answers
LekaFEV [45]
Let's say there were 3 questions with four answer choices each. That would mean there were 4*4*4 = 16*4 = 64 different ways to answer.

Extend this example out to 19 questions instead of 3. You'll get
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The last value is one big number (not four numbers)
The large number is the answer

note: 4^19 means we have 19 copies of '4' being multiplied together. The three dots mean "continue the pattern". On your paper, you should somehow indicate to your teacher that there are 19 copies of '4' being multiplied.
4 0
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Anastaziya [24]

a) A cube has faces, corners, sides;

b) A cylinder has faces;

c) A cuboid has faces, corners, sides;

d) A sphere has one face;

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5 0
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