EASY QUESTION!!
1 answer:
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we know that Bob can do the whole job in 14 hours, how much of the work has he done in 1 hour only? well since he can do the whole lot in 14 hours in 1 hour he has only done 1/14 th of the job.
we know that James can do it in 18 hours, a bit slower, so in 1 hour he has done only 1/18 th of the job.
let's say it takes both of them working together say "t" hours, so in 1 hour Bob has done (1/14) of the work whilst James has done (1/18) of the work, the whole work being t/t or 1 whole, so for just one hour that'd 1/t done by both Bob and James.
Answer:
i hope this helps
Step-by-step explanation:
2 -16=0
+16 +16
2 =16
÷2 ÷2
= 8
=
x=
-5 +9=0
-9 -9
-5=-9
÷-5 ÷-5
=1.8
=
x=
6 -15=27
+15 +15
6 =42
÷6 ÷6
=7
=
x=