Answer:
It will take 3.6 hours to wax a car if they work together.
Step-by-step explanation:
Calvin one hour work = 
Alvin one hour work = 
To find out how much they can do together per hour,
We have to add and
= 
= 
--------------(1)
They can do of the job per hour.
If "t" is the time taken to finish the job together, then one hour work
------------------------(2)
Now we have to find the value of "t" by setting the expression (1) and (2) equal.
It can solve by flipping the equation;
t = 3.6 hours
It will take 3.6 hours to wax a car if they work together.
Answer:
18 logs.
Step-by-step explanation:
Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.
4:2= 2 logs per hour
2*9=18 logs per 9 hours.
Answer:
Jen has X cats.
Sister has 3x-2 cats.
3x-2 = 4
X = 2
Step-by-step explanation:
Answer:
460% of free time is spent on internet and games .
Step-by-step explanation:
Given as :
The time spent by Gary on internet = 10 hours per week
The time spent by Gary on video games = 13 hours per week
So, Total time spent by Gary = 10 hours per week + 13 hours per week
= 23 hours per week
The free time which Gary have = 5 hours
Now, percentage of free time spent on internet and games = x %
So, x % of 5 = 23
or, x % = 
∴ x% = 4.6
I.e x = 460 %
Hence 460% of free time is spent on internet and games . Answer
