This would basically be :
5 1/3 - 3 9/18
Then, make both fractions share a common denominator
5 6/18 - 3 9/18
Then, change the first number to make it compatible to subtract
4 24/18 - 3 9/18 = 1 15/18
Simplify
1 15/18 = 1 5/6
3.75, to do this do 15*.25
Answer:
(13/2,-5/2)
Step-by-step explanation:
I hope this helps
Let's look at work rates per minute.
Together they can paint the wall in x minutes.
Working together, in 1 minute, they do 1/x of the job.
The student who paints the wall in 16 minutes does 1/16 of the job in 1 minute.
The student who paints the wall in 24 minutes does 1/24 of the job in 1 minute.
Together, they do 1/16 + 1/24 of the job in 1 minute, but from above, we see that together, they do 1/x of the job in 1 minute, so 1/16 + 1/24 must equal 1/x. That gives us our equation.
1/16 + 1/24 = 1/x
1/16 * 3/3 + 1/24 * 2/2 = 1/x
3/48 + 2/48 = 1/x
5/48 = 1/x
x = 48/5 = 9.6
Answer: It takes them 9.6 minutes, or about 10 minutes to do the job together.
Answer:
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