<span>The ratio of boys to girls is 12 to 16, 12:16 or 12/16 </span>
Answer:
x=3
Step-by-step explanation:
15 – 2x=3x
Add 2x to each side
15 – 2x+2x=3x+2x
15 = 5x
Divide each side by 5
15/5 = 5x/5
3 =x
Our parabola open downward and therefore a is negative.
Explanation:
As value of a changes from positive to negative or from negative to positive, the direction of opening changes. For negative values of a we got negative parabolas that open downward. As the original formula y = x^2 we see that x^2 will always be positive because when you square a number it always gives positive value. Therefore the direction for which it will open, depends on value of a.
The answer is x=18
Explanation:
6-0.2x=2(6-0.6x)
+0.2. +0.2
6=12-x
+12. +12
18=x
Hello,
In a horizontal line, the y-values are always the same. Therefore, we need to look at the y-value of the point that you have.
It is 44. Therefore, our equation is y = 44. The x-value doesn't matter.
Good luck,
MrEQ
