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nirvana33 [79]
3 years ago
15

Solve for x: 6x + 6 = 3x – 21

Mathematics
1 answer:
Volgvan3 years ago
6 0

Answer:

x = -9

Step-by-step explanation:

6x + 6 = 3x – 21

Subtract 3x from each side

6x-3x + 6 = 3x-3x – 21

3x+6 = -21

Subtract 6 from each side

3x+6-6 = -21-6

3x = -27

Divide by 3

3x/3 = -27/3

x = -9

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10 3/4 - 7 1/4 subtract mix numbers
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3 years ago
Raina said, how many different ways are there make $.30 using pennies, nickels, dimes,or quarters?
docker41 [41]

Answer:

There are in cents: 3 or 4 if you count it. And in dollars: 4 different ways to make 30 dollars or 30 cents.


Step-by-step explanation:

Cents: 30 pennies

6 nickels

3 dimes

if you can use both : 1 nickel and a quarter

I can not tell if that is 30 dollars or 30 cents so I will do both :

Dollars: 300 pennies

60 nickels

30 dimes

120 quarters




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3 years ago
Read 2 more answers
What is 12.5% As a fraction
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12.5/100

This can be simplified to:

125/1000

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3 years ago
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I need an explanation for this pleaseee
Alexxx [7]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
What is 5p to the -7 power/20p to the 2 power simplified
mr_godi [17]

Answer:

p^(-9) or 1/p^9

Step-by-step explanation:

Here we have:

  (5p)^(-7)

----------------

   (20p)^2

Let's temporarily remove the coefficient 5/20 and reduce it to 1/4.

then we have:

            1                             1               1

(1/4) -------------  = (1/4) -------------- = ------------

       p^7*p^2               p^(7 + 2)         p^9

8 0
3 years ago
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