The ratio of girls to boys in a class is 6 to 8. If there are 27 girls in the class, how many boys are there?
1 answer:
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For this case we have a factorized quadratic equation. We equal each factor to zero and thus find the roots:
Subtracting 5 from both sides we have:
Thus, the first solution of the equation is:
On the other hand we have:
Adding 3 to both sides:
Thus, the second solution of the equation is:
Answer:
The solutions of the equation are:
To write a linear equation in standard form, move each variable term to the left side of the equation and simplify.
Ax+By=C
Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
710x+10=y
