Answer:
25 years
Step-by-step explanation:
To find the mean you need to find the sum of all numbers and divide by the number of terms there are.
In this case you would need to multiply the mean ages by the number of people used to find the mean:
35 * 3 = 105
23 * 12 = 276
Then add the total ages together:
105 + 276 = 381
Then divide by the number of total people in the office:
12 + 3 = 15
381/15 = 25.4
rounded to 25
25% of 20 is 5. If 5 questions are B, the. the other 15 are not B.
Answer:
The third answeer
Step-by-step explanation:
Also nice talk
Answer:
x = 3
Step-by-step explanation:
The pair of angles given are alternate angles (they form a 'Z' shape). Alternate angles are always equal to each other. From this, we can get the equation:
14x - 13 = 8x + 5
Collect like terms,
6x - 13 = 5
6x = 18
x = 3
Hope this helped!! Ask me if there's any part of the working you don't understand :)
Answer: its 80
Step-by-step explanation: you just muti
