Answer:
Number of instructors are 225.
Step-by-step explanation:
Given:
Total number of employees at bright mind learning = 300
Number of instructors = 75%
We have to convert this percentage and find the number.
So,
can be written as
Now 75% of 300 employees are the instructors at Bright mind learning.
Can be written as
Number of instructors at Bright mind learning =225
Answer:
x = -4, y = 7, z = 2.
Step-by-step explanation:
4x + 2y + 5z = 8......(1)
5x + 3y + 4z = 9......(2)
6x + 3y + 3z = 3......(3)
Subtract: equation (2) - equation (3):
-x + z = 6 ........(4)
Multiply (1) by 3 and (2) by 2:
12x + 6y + 15z = 24 .........(5)
10x + 6y + 8z = 18 ...........(6)
Subtract: (5) - (6):
2x + 7z = 6..............(7)
Multiply equation (4) by 2:
- 2x + 2z = 12.........(8)
Add (7) + (8):
9z = 18 , so z = 2.
Substitute for z in equation (4)
-x + 2 = 6
-x = 4 so x = -4.
Now find y by substituting in equation (1):
4(-4) + 2y + 5(2) = 8
2y = 8 + 16 - 10 = 14
y = 7.
The answer is 1. I got this by dividing 118 by 9 and the 9 times 13 which equals 117. 117+1= 118
Answer:
Option A.
Step-by-step explanation:
We need to find the 500th digit if we write all the whole numbers from 1 to 500 in a row.
Single digit numbers are : 1-9 = 9 number = 9 digits
Double digit numbers are : 10-99 = 90 number = 180 digits
Total digits form 1 to 99 = 9+180 = 189
Now,
It means we have write 311 more digits.
After 99 we have 3 digit number.
311 is not divisible by 3. The number immediate before 311 which is divisible by 3 is 309.
It means the required digit is 2nd digit of 104th number after 99.
104th number after 99 is 203 and second digit of 203 is 0.
Therefore, the correct option is A.
you should do 5 times 12 plus the 3 it's better to do multiplication it's easier but if you divide that is ok but the dividing is more work