Answer:
25 percent
Step-by-step explanation:
Let the number of girls be x. Then the number of boys is 3*x = 3x.
the total number of students , i.e. 100 percent the number of students is therefore x + 3x = 4x.
so we have
4x = 100 percent
x = 100/4 percent
= 25 percent
therefore, the percentage of girls is 25
Hope it helps and if it does, plz mark me brainliest ;)
Answer:
B. y = (x + 3)^2 - 17
Step-by-step explanation:
When Andy completes the square, he adds and subtracts the square of half the x-coefficient. That is, he adds and subtracts (6/2)² = 9:
... y = x² +6x +9 -8 -9
... y = (x² +6x +9) -17
... y = (x +3)² -17 . . . . . . . . matches selection B
If you would like to know 52.5% of what number is 25.83, you can calculate this using the following steps:
52.5% of what number is 25.83
52.5% * x = 25.83
52.5/100 * x = 25.83 /*100/52.5
x = 25.83 * 100 / 52.5
x = 49.2
Result: 52.5% of 49.2 is 25.83.
0.41 is greater than 0.31
