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lawyer [7]
3 years ago
9

Solve for w 4w - 9 = 7

Mathematics
1 answer:
bagirrra123 [75]3 years ago
6 0

Answer:

w = 4

Step-by-step explanation:

1. Isolate the variable by adding 9 to both sides

--> 4w = 16

2. Divide each side by 4

--> w = 4

-If this answer helps you, please remember to vote it as 'brainliest answer' :)

Thank you!

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HEEEEEEEELLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPp
Debora [2.8K]

Answer:

6

Step-by-step explanation:

This problem centers on recognizing the relationship between fractions and repeating decimals.

<u></u>

Note the following:

\frac{1}{3}=0.33333333333333333333333333333333333333333333333...  

or more simply \frac{1}{3}=0.\bar{3}

This means that 2\frac{1}{3}=2.\bar{3}

Going back to the original expression, 3\frac{2}{3}+2.\bar{3}  simplifies to 3\frac{2}{3}+2\frac{1}{3}

Next, adding mixed numbers.  For adding mixed numbers, whole number parts and fractional parts can be added separately <em>(this is because of the associative and commutative properties of addition)... because </em>

3\frac{2}{3}+2\frac{1}{3} means the same thing as

(3+\frac{2}{3})+(2+\frac{1}{3})

Changing the order, we can write it as

3+2+\frac{2}{3}+\frac{1}{3}

Adding the whole number parts, 3+2 is 5.

Next, adding the fraction parts:

For adding fractions, one must have a common denominator (the bottom part of the fraction must be the same).  Once they are the same, the denominator just sort of "hangs out" until the end without changing, and the numerators (the tops) are added together.

Fortunately, the denominators are already the same.  So, add the numerators, and the denominator will stay as a 3.

\frac{2}{3}+\frac{1}{3}

\frac{1+2}{3}

\frac{3}{3}

It is important to recognize that any fraction* where the number on the top matches the number on the bottom, the fraction is equivalent to 1.

<em>*(except if the number we're talking about is zero)</em>

So, the fraction parts added together, are equivalent to 1, and the whole number parts added were equal to 5.  Returning to our expression...

3+2+\frac{2}{3}+\frac{1}{3}

5+\frac{3}{3}

5+1

6

7 0
2 years ago
Find the value of x that will make a||b help ?
nydimaria [60]

Answer:

x=30

Step-by-step explanation:

Find the value of x that will make A and B parallel

For A & B to be parallel, the interior angles must be supplementary, i.e.

4x+2x = 180

6x=180

x=30

When x=30, the interior angles are 120 and 60 which are supplementary.

4 0
3 years ago
Find C on AB such that the ratio of AC to CB is 1:2.<br>A(-3,-3) B(4,5)
Sati [7]
I THINK ITS B or A BUT I AM NOT SURE
3 0
3 years ago
What is the solution R-7=1?? Thank
cluponka [151]

Answer: R=8

Step-by-step explanation: R-7=1, R+7=1+7, R=8.

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2 years ago
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Between which pair of decimals does the square root of 13 fall between
creativ13 [48]
Since 3 squared is 9 and 4 squared is 16, the square root of 13 will fall somewhere between 3 and 4
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