The means is the average of a data set
Answer:
its just the congruency rules .
you had to explain them using the rules
Step-by-step explanation:
<span>×^2+5×-24=0
(x+8)(x-3) = 0
x+8 = 0, x = -8
x - 3 = 0, x = 3
answer: </span>x = -8 and x =3
We need to compute for the length of each trophy given that one trophy is 5 inches wider than the other.
Let x be the length of the first trophy.
Let x+5 be the length of the second trophy
The solution is shown below:
x + (x + 5) = 17
x + x + 5 =17
2x =17 -5
2x = 12
x = 12/2
x=6 (for the first trophy)
x + 5 = 6+5 = 11 (for the second trophy)
The first trophy is 6 inches wide while the second trophy is 11 inches wide.
B-> number of boys
G-> number of girls;
Then, according to text
B=3G {1} and
B=G+28 {2}
Substitute {1}->{2} :
3G=G+28 or 2G=28, or G=14
so B=3G=3*14=42
______
Number of Boys =42
Number of Girls =14
