Answer:
C
Step-by-step explanation:
x=9, y=10. (9, 10). The two numbers are 9 and 10.
3x+5y=77
x+y=19
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-3(x+y)=-3(19)
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-3x-3y=-57
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2y=20
y=20/2
y=10
x+10=19
x=19-10
x=9
use the formula given in the pic and you will get the answer
0.48
Given the data:
X:
10,17,20,23,24,28,32,39,42,25,26,52,55,58,61,65,66,72,75,78,79,85,94,97,98
Sum of each of the numbers :
1, 8, 2, 5, 6, 10, 6, 12, 6, 7, 8, 7, 20, 13, 7, 11, 12, 9, 12, 15, 16, 13, 13, 16, 17
Probability that sum of the number's digit is odd:
Number of odd sum / total numbers
Number of odd sum = 12
Total numbers = 25
12 / 25
= 0.48
Answer: 3.82
Step-by-step explanation: there is a decimal
