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.
184^2+b^2= 545^2
33856+ b^2= 297,025
b^2= 263169
b= 513
The length is 513 ft
Hello there. Sorry from last time.
What is the standard deviation of the possible outcomes? Roundyour answer to two decimal places.
<span>B.12.55</span>
Answer:
163.35
Step-by-step explanation:
13.5 x 12.1 = 163.35
Answer:
33.34%
Step-by-step explanation:
- 60000 = 66.66% from 90.000
- The decreasing is 30.000 which equal to 33.33% from 90.000
