Answer:
12
Step-by-step explanation:
Answer:
2x-8
Step-by-step explanation:
From the question the meaning of the expression is
Let the number be x
2x - 8
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Hello.
For all dilution problems use the dilution equation:
<span>C1V1 = C2V2 </span>
<span>20*V1 = 6*55 </span>
<span>V1 = 6*55/20 </span>
<span>V1 = 16.5 gallons </span>
<span>The final volume must be 16.5 gallons </span>
<span>You must add 16.5 - 6 = 10.5 gallons water to be added.
</span>
Have a nice day
:
Since , we get:
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We have
simplify
then the radical rule is used:
⇒
Now we have and
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and
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since is the half of
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<em>(-4+5=1)</em>
Take 5 to the left:
(10×5)x = y
50x = y