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sdas [7]
4 years ago
10

5x-3=15-3 Please help mee

Mathematics
2 answers:
Vesnalui [34]4 years ago
7 0
I believe x=3
5 times 3=15-3
larisa86 [58]4 years ago
4 0
You just need to isolate x. Subtract 3 from 15, add three to both sides then divide by 5.

5x-3=15-3
5x-3=12
5x=15
x=3
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7

Step-by-step explanation:

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Step-by-step explanation:

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A right rectangular prism has a volume of 120 in. What is the new volume if the length, width and height are doubled?
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We don't know what the dimensions are, but any numbers that have a sum of 120 will work. Let's use 3, 4, and 10.

3 x 4 = 12   10 x 12 = 120

But if you double each dimension:

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3 years ago
Which of the following is an arithmetic sequence?
enot [183]

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The third sequence.  

Step-by-step explanation:

In an arithmetic sequence, the difference between two consecutive terms is the same.

For each option, find the difference between consecutive terms:

First option:

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  • 8 - 4 = 4.
  • 16 - 8 = 8.

The differences are not the same. As a result, this option is not an arithmetic sequence.

Second option:

  • 4 - 12 = -8.
  • \displaystyle \frac{4}{3} - 4 = -\frac{8}{3}.
  • \displaystyle \frac{16}{3} - \frac{4}{3} = \frac{12}{3} = 4.

The differences are not the same. As a result, this option is not an arithmetic sequence, either.

Third option:

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  • \displaystyle -\frac{5}{2} - \left(-\frac{3}{2}\right) = -\frac{5}{2} + \frac{3}{2} = -1.

The differences are all -1. As a result, this option is indeed an arithmetic sequence. Its common difference is (-1).

Fourth option:

  • \displaystyle -\frac{1}{2} - \frac{1}{2} = -1.
  • \displaystyle \frac{1}{2} - \left(-\frac{1}{2}\right) = \frac{1}{2} + \frac{1}{2} = 1.
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The differences are varying between 1 and -1. As a result, this option is not an arithmetic sequence.

3 0
3 years ago
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