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Fofino [41]
3 years ago
10

Find the value of X on this proportion

Mathematics
2 answers:
rosijanka [135]3 years ago
5 0

solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying, and solving the resulting equation. You'll probably start out by just solving proportions, like this:

<span><span><span>Find the unknown value in the proportion:  </span><span>2 : x = 3 : 9.</span></span><span>2<span> :</span> x = 3<span> :</span> 9</span>First, I convert the colon-based odds-notation ratios to fractional form:.Then I solve the proportion:<span> 
</span><span>9(2) = </span><span>x(3)</span> <span>
1</span><span>8 = 3x</span><span> 
</span><span>6 = x</span></span><span><span><span>Find the unknown value in the proportion:  </span><span>(2x + 1) : 2 = (x + 2) : 5</span></span><span>(2x + 1)<span> :</span> 2 = (x + 2)<span> :</span> 5</span><span><span> ADVERTISEMENT</span><span> </span></span>First, I convert the colon-based odds-notation ratios to fractional form:Then I solve the proportion:<span> 
</span><span>5(2x + 1)  =  2(x + 2)</span><span> 
</span><span>10x + 5  =  2x + 4</span><span> 
</span><span>8x  =  –1</span><span> 
</span><span>x = –1/<span>8</span></span></span>
Serga [27]3 years ago
4 0

Answer:

the answer is c .

Step-by-step explanation:

8 1/10 , took it on edgenuity.

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General Formulas and Concepts:

<u>Pre-Algebra</u>

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<u>Algebra I</u>

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