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Tju [1.3M]
3 years ago
9

use the properties of equality to show that the equation 6x + 3 = 27 is equivalent to the equation 2x = 8.

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
5 0

Answer:

Step-by-step explanation:

The equation 6x + 3 = 27 is equivalent to 2x = 8 because you can divide 8 by 2x to get X=4. To solve 6x + 3 = 27, you can subtract 3 to both sides of the equal sign to end up with 6x = 24, and from there you can divide 24 by 6x and also end up with X = 4. Both equations have the same answer.

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If y is directly proportional to x and when y = 35, x = 140, what is the value of x when y = 70?
levacccp [35]

Answer: 280 = x


Step-by-step explanation: Okay you are using this equation! y = kx But you must rearrange it!

When rearranged you get y/x = k

Plug in x and y!

y/x = k

35/140 = k

0.25 = k

Now find the value of x.

You use this formula now, y/k = x

Plug in k from the last problem and y = 70

y/k = x

70/0.25 = x

280 = x



6 0
4 years ago
PlEase explain where the decimal and zero comes in for 4840/90?
Anika [276]

Answer:

Read my explanation

Step-by-step explanation:

Since they both end with a 0, you can just cancel it out. So you'd have 484/9.

The answer to that is 53.7777777777...

So the decimal would come before the 3 and after the 7.

I hope this helped and have a good rest of your day!

6 0
3 years ago
I give brainlilest
timurjin [86]

Answer:

7 days or 2 days (depending on context)

Step-by-step explanation:

15 liters a day ÷ 5 days= 3 liters a day

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if she just wanted to make 6 more to make 21, then it would take 2 days.

6 0
3 years ago
I put 41 points.
Anna71 [15]
It is the first equation, 3x-y=-7.
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3 0
3 years ago
Please help me! (Simple interest) I'm bad with this stuff!
Elena-2011 [213]

Answer:

A, Interest

Step-by-step explanation:

interest is a fee paid for borrowing money or other assets

5 0
3 years ago
Read 2 more answers
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