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lina2011 [118]
3 years ago
12

Simplify the expression -3(x+3)-3+3x into standard form

Mathematics
1 answer:
timofeeve [1]3 years ago
6 0
That in standard form would be 12
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Sharon has at most $25 to spend on her sister's birthday gift. She already bought a knitting machine for her, which cost $14.99.
Likurg_2 [28]

Answer:

$25 >= 14.99+2.75x

Step-by-step explanation:

7 0
2 years ago
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Simplify the expression below.<br> 5x² (3x + 2)
Westkost [7]

Step-by-step explanation:

5x^2(3x+2)

Distribute into 5x² into (3x +2).

15x^3+10x^2

The simplified expression is <em>15x³ + 10x²</em>

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3 years ago
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How do I get this equation to equal 130 by putting parentheses in it...310-20÷2×5+13
elena-14-01-66 [18.8K]
The correct is 283 maybe
8 0
3 years ago
the length of a rectangle is 3cm more than the width. find the length and the width if the perimeter of the rectangle is 98cm.
laila [671]

The perimeter of a rectangle is <u>length + length + width + width</u>.

We know that the length of a rectangle is 3cm more than its width, which gives us the equation:  (l for length and w for width)

l = 3 + w

We also know that the perimeter of the rectangle is 98cm, which gives us the equation:

98 = 2l + 2w         (equation for perimeter of a rectangle as noted above)

We can divide both sides of this equation by 2 to get:

49 = l + w

Now we'll stick l = 3 + w into the above equation, which gives us:

49 = 3 + w + w

which simplifies to 49 = 3 + 2w.

Now we'll subtract 3 from both sides:

49 - 3 = 46

3 + 2w - 3 = 2w

which gives us 46 = 2w.

Dividing both sides by 2 gives us 23 = w.

Substituting w = 23 into the equation l = 3 + w gives us:

l = 3 + 23

l = 26cm.

Let's check our answer.  26cm is 3cm more than 23cm.  26cm + 26cm + 23cm + 23cm gives us 98cm.  The length is 26cm and the width is 23cm.


7 0
3 years ago
Pls help
katrin [286]
I’m pretty sure it’s added, subtracted, added !
3 0
3 years ago
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