Answer:
40/9
Step-by-step explanation:
Use the work formula, 
+ 
= 
, where A is the amount of time it takes one person, B is the amount of time it takes another person, and T is the time it takes for them to work together.
Plug in the times for David and Alex alone:
+ 
=
Find the least common denominator, which is 40.
+ 
=
=
Cross multiply and solve for T:
9T = 40
T = 40/9
So, if they worked together, it would take them 40/9 hours
Answer:
Here is the answer:
42.857143%
Rounded would be:
42.9 or 42.3
Step-by-step explanation:
Answer:
you would get 15% of the 2,000$
Step-by-step explanation:
hope it helps pls give brainly
Answer:
1) -
2) -
3) -
4) -
5) -
6) -
7) -
8) -
Step-by-step explanation:
Answer:
- The Expression will be defined if the denominator is not equal to 0 since any number divided by 0 is undefined.
- Therfore our main priority here is to check the denominator only because it's the only part that can make the expression undefined
- the expression will be defined for all real numbers (a) BUT 3+a must not equal to 0 therfore (a) can be all real numbers but must never be equal to -3
Step-by-step explanation:
- HOPE THIS HELPS!
