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3 years ago

2 times a number less 4 is 20

Mathematics

2 answers:

attashe74 [19]3 years ago

5 0

Answer:

The answer is 8

Step-by-step explanation:

Let the number be x

4x- 12=20 (12 less than 4 times a number is 20)

4x= 20 +12

4x=32

x=8

Hope this helps!!

vladimir1956 [14]3 years ago

4 0

Answer:

68?

Step-by-step explanation:

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jok3333 [9.3K]

Answer:

-5.6, -5.3, -5.1, -5.

Step-by-step explanation:

Convert the first fraction to a decimal.

-5 1/3 is equal to -5.3333333333

Round to the nearest tenth.

-5.3333333333 rounded to the nearest tenth is -5.3.

-5 1/3 = -5.3.

Convert the second fraction to a decimal.

-5 3/5 is equal to -5.6.

The fraction is already rounded, so that's all for the second one.

-5 3/5 = -5.6.

The new set of numbers we have include -5.1, -5.3, -5, and -5.6.

We can now sort from least to greatest.

The first number is -5.6.

The second number is -5.3.

The third number is -5.1.

The fourth number is -5.

Listing the numbers -5.1, -5.3, -5, and -5.6 from least to greatest would result in -5.6, -5.3, -5.1, and finally -5.

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3 years ago

What is the difference between the number of vertices of

Dafna11 [192]

I didn’t understand so I looked it up One
Step-by-step explanation:
An octahedron has 6 vertices (or "corners").
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3 years ago

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And a picture of a charger just because

REY [17]

Answer:

1. 1

2. 5

3. lost 0.8 pounds

Step-by-step explanation:

The least value (or the most she lost) is in week 1

The greatest value (or the most she gained) is in week 5

When you add all the values together, you get:

-4.1 (lost)

3.3 (gained)

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She lost a total of 0.8 pounds

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3 years ago

Find the solution of the square root of the quantity of x plus 2 plus 4 equals 8, and determine if it is an extraneous solution

Iteru [2.4K]

Consider the equation:

$\sqrt{x+2}+4 = 8$

Subtracting '4' from both the sides of the equation, we get as

$\sqrt{x+2}+4-4= 8-4$

$\sqrt{x+2}= 4$

Squaring on both the sides of the equation, we get

$(\sqrt{x+2})^2 = (4)^2$

$x+2 = 16$

Subtracting '2' from both the sides of the equation, we get

$x+2-2=16-2$

x=14

Since, An extraneous solution is a solution that arises from the solving process that is not really a solution at all. But, in this equation x=14 is the solution of the given equation.

Hence, it is not an extraneous solution.

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4 years ago

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