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katen-ka-za [31]
3 years ago
9

What is the numeratorfor the following rational expretion? 3/k+4/k=?/k

Mathematics
2 answers:
omeli [17]3 years ago
7 0
7/k should be the answer since when adding and subtracting as long as the denominators are common (which they are) only the numerator is changed
grin007 [14]3 years ago
6 0
Because they all have the same denominator, all you have to do is add the numerator! So, 3/k + 4/k would equal 7/k
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If jim gets 100 dollars per month and martha gets 150 how much more would they get in 15 years??
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3 0
3 years ago
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A shipment of 11 printers contains 2 that are defective. Find the probability that a sample of size 2​, drawn from the 11​, will
svet-max [94.6K]

The required probability is \frac{36}{55}

<u>Solution:</u>

Given, a shipment of 11 printers contains 2 that are defective.  

We have to find the probability that a sample of size 2, drawn from the 11, will not contain a defective printer.

Now, we know that, \text { probability }=\frac{\text { favourable outcomes }}{\text { total outcomes }}

Probability for first draw to be non-defective =\frac{11-2}{11}=\frac{9}{11}

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7 0
3 years ago
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Strike441 [17]
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8 0
4 years ago
65+ 6x + 3x + 9 + 65=180
Ierofanga [76]
Let's solve your equation step-by-step.<span><span><span><span><span>65+6x</span>+3x</span>+9</span>+65</span>=180
</span>
Step 1: Simplify both sides of the equation.<span><span><span><span><span>65+6x</span>+3x</span>+9</span>+65</span>=180
</span><span><span><span>(<span>6x+3x</span>)</span>+<span>(<span>65+9+65</span>)</span></span>=180 </span>(Combine Like Terms)
<span><span><span>
9x</span>+139</span>=180</span><span><span>9x+139</span>=180
</span>
Step 2: Subtract 139 from both sides.
<span><span><span><span>
9x</span>+139</span>−139</span>=180−139</span><span>9x=41
</span>
Step 3: Divide both sides by 9.
<span><span>9x/9</span>=<span>41/9
</span></span><span> x=<span>41/9
 And finally you divided by 41/9 
Answer is x= 4.555556

</span></span>
3 0
3 years ago
Read 2 more answers
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