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inysia [295]
3 years ago
14

Please help me on this please

Mathematics
1 answer:
Naddika [18.5K]3 years ago
5 0
Imma start that lesson in about two years so sorry I can’t answer this question I
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Sam has 3x + 4 dollars saved. Tessa has saved 7x + 16 dollars. Together they
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Step-by-step explanation:

3x + 4 + 7x + 16 = 110

10x = 90

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therefore, Sam = $31 and Tessa = $79

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3 years ago
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Combine the like terms to create an equivalent expression<br> -k - ( - 8k)
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Answer:

7k

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Step-by-step explanation:

We are trying to combine like terms with the expression: -k - ( - 8k)

We are pretty much solving it.

Solve:

-k - ( - 8k)

The "- ( -" turns into a plus sign.

So it would look like:

-k - -8k or -k + 8k

Now, you would finish solving

-k + 8k = 7k

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3 years ago
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What is the answer of a+3−a?(it has to be simplified)
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3 years ago
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In a lab experiment, 50 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to doub
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Is -52.45 rational or irrational
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rational

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it can be expressed as a fraction

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