Answer:
First score is 90
Step-by-step explanation:
Let A represent the first score
Let B represent the second score
Let C represent the third score
A+B+C=217 equation 1
If the first score A is 30 points more than the second,B
A=B-30 equation 2
Lastly,sum of A&B is 16 more than 2C
A+B=2C+16 equation 3
From equation 1
A+B=217-C equation 4
substitute for A+B in equation 3
217-C=2C+16
217-16=2C+C
201=3C
C=67
substituting C in equation 4
A+B=217-67
A+B=150
if the first score more than the first,then the first 90 while second 60 since A+B=150
Answer:
2 squared times 3 squared
Step-by-step explanation:
Answer:
96
Step-by-step explanation:
From the given information:
At 95% Confidence interval level,Level of significance 
0.05, the value of Z from the standard normal tables = 1.96
Margin of Error = 0.10
Let assume that the estimated proportion = 0.5
therefore; the sample size n can be determined by using the formula: 
n = 96.04
n 
96
Answer:
sorry
Step-by-step explanation:
i have to comment to get points to ask questions
Answer:
Hi, this riddle could have several answers, including:
-Because I had to go to the bathroom so badly
-Because my child was supposed to get himself in the car
-Because I forgot my child was home
Or another answer is possible too!
