Set up the equation by writing the number of students in the ratio as a fraction:
3/4= (245-x)/x Cross multiply:
3x= 4(245-x) Multiply on right:
3x= 980-4x Add 4x on both sides:
7x= 980 Divide both sides by 7:
x= 140 this is how many girls there are. And:
245-140= 105= boys
Use y = mx+b Equation is Y=5x+5
<u>Answer and Explanation</u>
<u>__________________________________________________________</u>
<h2>The solution of the equation is 20. </h2><h3>( The value of x. )</h3>
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<em>The value of x is 20.</em>
<em>We can figure this out by...</em>
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<u></u>
<em> but what does x equal?</em>
<u></u>
= 
= 
<em>Since both are equal to -8, that means </em>
=
.
<em>Which means that...</em>
<em>x = 20</em>
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<em>Hope this helps! <3</em>
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<em></em>
Answer:
This is a fast answer:
D, A, B, A, A.
Let me know if you need explanation! All the best :D
Answer:
Arnie
Step-by-step explanation:
Arnie : 34 ÷ 16 = 2.2
Maria : 18÷ 15= 1.2