Halving-reduce by half or think what is fifty% of the number or divide by two
doubling-add the number you got to the same number or multiply by two
Halving Ex.:6/2=3
Doubling ex.: 9+9=18 or 6*2=12
Answer:
It takes the second worker 11 hours to do the job alone
Step-by-step explanation:
The problem tells you how to work it.

x = 11 tells you the second worker takes 11 hours to do the job alone.
_____
You can also work directly with the fractions. Subtract 1/11 and you have ...
1/x = 1/11
It should not be a real stretch to see that x=11. If you need, you can multiply both sides by 11x to get 11=x.
Answer:
1. 14.666 ¯ over the 3
2. 14.034 ¯ over the 3
Step-by-step explanation:
31-2=29 you add 2 to both sides so -2 cancels and you are left with X=31
the answer is 31
Answer:

Step-by-step explanation:
<em>The question in English is</em>
If 4x= 5/6y then 5y=
we have

Solve for 5y
Multiply both sides by 6

Simplify

Rewrite
