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WINSTONCH [101]
3 years ago
13

X-4=1/4(8x-16) for x

Mathematics
1 answer:
tamaranim1 [39]3 years ago
3 0

Answer:

x=0

Step-by-step explanation:

factor out 4 from the expression

x - 4 = 1/4 * 4(2x - 4)

Reduce the numbers with the greatest common factor (4)

x - 4 = 2x - 4

cancel equal terms on both sides of the equation

x=2x

move the variable to the left-hand side and change its sign

x - 2x = 0

collect like terms

-x = 0

change the signs on both sides of the equation

x = 0

Hope this helps!!

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What is cosA ?<br><br><br><br> Enter your answer, as a simplified fraction, in the box.
krok68 [10]

Answer:

5/13

Step-by-step explanation:

From the mnemoic SOH CAH TOA, we know that ...

... Cos = Adjacent/Hypotenuse

In this triangle, that means ...

... cos(A) = AC/AB

We are given the value of AC, but we need to find the value of AB. We can do that using the Pythagorean theorem:

... AB² + AC² +BC²

... AB² = 15² +36² = 1521 = 39²

... AB = 39

Then ...

... cos(A) = 15/39 = (5·3)/(13·3)

... cos(A) = 5/13

8 0
3 years ago
Log5(10x-1)=log5(9x+7)<br> whats the final answer
Masja [62]

Answer:

x = 8

Step-by-step explanation:

log₅ (10x − 1) = log₅ (9x + 7)

10x − 1 = 9x + 7

x = 8

3 0
3 years ago
DeMarkus says that a store overcharged him on the price of the video game he bought. He thought that the price
satela [25.4K]

The difference between the price that DeMarkus thought he should pay and the price that the store charged him is $24

The question provided is incomplete. Here is the complete question : DeMarkus says that a store overcharged him on the price of the video game he bought. He thought the price was marked  1/4 of the original price, but it was really  1/4 off the original price. He misread the advertisement. If the original price of the game was $48 , what is the difference between the price that DeMarkus thought he should pay and the price that the store charged him?  A. $28.50B. $36.00C. $42.50D. $24.00

The first step is to determine the price DeMarkus thought the price of the videogame was = 1/4 of the original price

1/4 x $48 = $12

The second step is to determine the actual discounted price.

Actual discounted price = original price = (1/4 of the price)

48 - (1/4 x $48 = $12)

$48 - $12 = $36

The third step is to determine the difference in the prices

$36 - $12 = $24

A similar question was solved here: brainly.com/question/934526?referrer=searchResults

5 0
3 years ago
A store has 13 boxes of candles. There are 44
schepotkina [342]

Answer:

145 candles

Step-by-step explanation:

6 0
3 years ago
On a number line what is the distance between -12 and 20 ??
KIM [24]

Answer:  Step-by-step explanation:

In order to answer this question you will need to find 2 distances and then add them to each other.

Begin at -29.  How far will you have to move to the right 29 in order to get to 0?

Now how far will you have to more to get from 0 to 100?

Draw an open number line to help you.

_____________________________________________________

-29                                           0                                                   100

Your first distance is 29.  Your second distance is 100.  The total distance is 129.

3 0
3 years ago
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