after four weeks he has 86 dollars. after everything he has 50 dollars
Answer: K= 5
Step-by-step explanation: Hope this helps! :)
Option A:
Yes, he is correct.
Solution:
To find the distance between two points (2, 4) and (6, 3).
Distance between two points formula:
Here 
Substitute these in the distance formula.
Step 1:
Step 2 :
Using BODMAS rule, first simplify the values into the bracket.
Step 3:
Squaring the numbers.
Therefore, George's work is correct.
Option A is the correct answer.
Answer:
20 and 56
Step-by-step explanation:
76/2 = 38
38 - 18 = 20
38 + 18 = 56
20 + 56 = 76
Answer:
13.2 minutes or 13 minutes 12 seconds.
Step-by-step explanation:
1. Count how much water drains the first pump every minute. Let the volume of pool be D. Every minute first pump drains D/11 water.
2. Working together(6 minutes) First pump drains 6D/11 water, hence the second pump drains 5D/11 water.
3.Count how much water drains second pump per minute -> (5D/11)/6= 5D/66
4. It takes the second pump 66 minutes to drain pool 5 times, thus it takes 13.2(66/5) minutes to drain the pool, which is 13 minutes 12 seconds.
