Percentage of students that are girls in the class = 60%
Number of girls in the class = 18
Let us assume the total number of students in the class = x
Then
60% * x = 18
(60/100) * x = 18
6x/10 = 18
6x = 18 * 10
6x = 180
x = 180/6
= 30
So the total number of students in the class is 30.
Number of boys in the class = 30 - 18
= 12
So there are 12 boys in the class. I hope the procedure is simple enough for you to understand.
Alright! From the start, each number is being divided by 10. Or, in simple terms, the decimal is moving one to the left each time:
547 → 54.7 → 5.47 → 0.547
Now, you have to keep moving the decimal one to the left. To do that, you have to fill in a zero each time. So the next two terms would be as follows:
.547 → .0547 → .00547
3 feet is 36 inches.
36 x 4 is 144.
There are 144 1/4 inch pieces in 3ft of fishing line.
If x = -14, substitute the x back into the equation.
so now the equation is 2(-14) + 12. multiply the 2 by -14 first to get -28 + 12.
add those two together to get -16. hope this helps!
Well 1000 for his birthday then subtract 25 each week, w, should be 1000-25w if i am not mistaken.
