Answer:
Step-by-step explanation:
Let x represent the number of stamps from Europe.
Let y represent the number of stamps from Africa.
Let z represent the number of stamps from Asia.
She has 47 stamps in all. This means that
x + y + z = 47 - - - - - - - - - - - 1
The number of African stamps is 2 times the number of Asian stamps. This means that
y = 2z
She has 20 stamps from Europe. Therefore, substituting x = 20 and y = 2z into equation 1, it becomes
20 + 2z + z = 47
3z = 47 - 20 = 27
z = 27/3 = 9
y = 2z = 2 × 9
y = 18
She has 20 stamps from Europe, 18 stamps from Africa and 9 stamps Asia.
Answer:
20kph
Step-by-step explanation:
10 * 2 = 20
Answer:
the very first one 8.62<8.623
Answer:
4 row: 6,5,7,5
5 row: 6,8
6 row: 5,4,6,4
For 7: 4/25
For greater than 7: 1/25
Step-by-step explanation:
Total is 25
For 7: 4/25
For greater than 7: 1/25
Answer:
The median is near the center of the IQR for both males and females.Step-by-step explanation:
