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never [62]
4 years ago
9

Someone PLEASE help!!!!!!!!!!Solve the equation. b/-4 = -2

Mathematics
2 answers:
dangina [55]4 years ago
8 0
When solving algebraic equations, first decide what variable need to solved. In this case, the b variable. When solving for a variable, get the variable on one side and everything else on the opposite side of the variable you're solving for.

We have the equation \frac{b}{-4} = -2

What can we do to get the b variable by itself? Well, we can multiply the left-hand side of the equation by -4. But any thing we do on one side, we must do on the opposite side.

\frac{b}{-4} *  \frac{-4}{1} = -2 *  \frac{-4}{1}  \\ b = 8

So, b is equal to 8.
posledela4 years ago
5 0
The answer for this equation is A=8
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Rewrite with the LCD
anygoal [31]
1/4 + 3/8

Rewrite with the LCD (lowest common denominator)

Remember : the denominator is just the bottom number on a fraction.

Let's look at both of our given fractions denominator's.

4 & 8 → What do both of these numbers have in common? They both go into 8!

How many times does 4 go into 8? → Twice

How many times does 8 go into 8? → Once

So, because of that, we must multiply the top number (numerator) of each fraction with either one, or two.

First fraction : 1/4 × 2/2 =2/8 → So, our first fraction changes.

Second fraction : 3/8 × 1/1 = 3/8 → However, our second fraction changes.

So, our new question looks like this : 2/8 + 3/8

If you wanted us to answer this question, we simply need to add the top numbers (numerators) with one another because both fractions have the same bottom numbers (denominators).

2 + 3 = 5

So, our answer is 5/8 and our question rewritten with the LCD is : 2/8 + 3/8

~Hope I helped!~

 
6 0
4 years ago
Which of the following verifies that AABC is similar to A DEF?
emmainna [20.7K]

Answer:

D

Step-by-step explanation:

According to the SAS theorem, if the 2 sides of the 2 triangles are multiples of each other by the same scale factor, with the angle in between them being the same for each triangle. The triangles are similar.

The SSS theorem is not appropriate here because we do not know the side lengths of AB or DE in the diagram. For SSS theorem we need to know all of the side lengths.

A is incorrect because the similarity can be determined.

6 0
4 years ago
Read 2 more answers
What is the ratio of apples to bananas?
Andre45 [30]

Answer:

a

Step-by-step explanation:

it has the same a prime bundle

4 0
3 years ago
What is the radius and diameter of the following circle?<br> 11 cm
yanalaym [24]

Answer:

Diameter is 11cm, and the radius is 5.5

Step-by-step explanation:

To get the radius, just divide the size of the circle by 2

Diameter is the same size as the circle

3 0
3 years ago
Solve the system of equations by the substitution method.
xeze [42]
We can substitute the second into the first, this gives:

x -5x = -24 =>
-4x = -24
x = 6

fill in this x value in the second equation:

y = -5*6 = -30

So the solution is x=6, y=-30
6 0
4 years ago
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