You really just have to do 12.4 x 2 = 24.8 because half of 24.8 is 12.4.
No, it is not a valid inference because her classmates do not make up a random sample of the students in the school.
Answer:
70 is the answer for this question
Answer: w = 9 inches
w + 5 = 14 inches
Step-by-step explanation:
X=amount of children tickes sold
y=amount of adult tickets sold
2 times of children as adult
x=2y
total cost is 800
5x+10y=800
divide both sides by 5
x+2y=160
x=2y
2y+2y=160
4y=160
divie by 4
y=40
x=2y
x=2(40)
x=80
80 children tickets
40 adult tickets
