Answer:
3 adult tickets and 4 child tickets
Step-by-step explanation:
a + k = 7
a = 7 - k
12a + 9k = 72
12a + 9k = 72
12(7 - k) + 9k = 72
84 - 3k = 72
84 - 3k = 72
3k = 12
k = 4
a = 3
we know that
P(both parts defective) = P(1st is defective) * P(2nd is defective)
Probability of 1st detective:
total parts =50
number of defects =6
so,
P(1st is defective)
Probability of 2nd detective:
total parts =49
number of defects =5
so,
P(2nd is defective)
Probability of both detective:
P(both parts defective) is
...............Answer
Answer:
k = 1 or k = -6
Step-by-step explanation:
k² + 5k -6 = (K-1) (k+6) = 0
k = 1 or k = -6
Actually, the median is not the same as the average.
The mean and the average are the same.
To find the median, put these numbers in order.
So 4, 5, 8, 9, 10. Now see which number is in the middle.
It is 8, so 8 is the median number.
The percent increase in area of the picture is 40.33%
Step-by-step explanation:
Original area of the rectangular picture that measures 6 in by 9 in will be
Area= L*W
Area= 6*9= 54 in²
Increasing the dimensions by 1+ 1/3 larger will be
6+1+1/3 = 22/3
9+1+1/3=31/3
New area= 22/3 * 31/3 =682/9 = 75.78 in²
Increase in area = 75.78 - 54 = 21.78
Percent increase in area= percent increase/original area *100
Percent increase in area= 21.78/54 *100 = 40.33%
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Area of a rectangle : brainly.com/question/10865708
Keyword : rectangle, area, percent increase
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