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Solnce55 [7]
3 years ago
5

Geometry- Solve the portion. Question#4​

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0

Answer:

d=18

Step-by-step explanation:

<h3>First let's write our equation</h3><h3 /><h3>\frac{6}{d-6} =\frac{4}{8}</h3><h3 /><h3>Reduce</h3>

<em>Definition -  </em><em>reduction refers to the rewriting of an expression into a simpler form</em>

<h3 />

We can reduce \frac{4}{8} to \frac{1}{2}

Our equation is now \frac{6}{d-6} =\frac{1}{2}

Now we can cross multiply

<em>Definition - </em><em>given an equation between two fractions or rational expressions, one can cross-multiply to simplify the equation or determine the value of a variable.</em>

d-6=12

<h3>Add</h3>

We are adding because we want our variable to be on one side of the equation

d=18

<h3>To check we can show our equation but instead of d we have 18</h3><h3 />

\frac{6}{18-6} =\frac{1}{2}

Subtract and we get

\frac{6}{12} =\frac{1}{2}

Which makes it true

<h3><em>Have a good day!</em></h3>
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