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Elenna [48]
1 year ago
15

Simplify -(3a-3) it’s hard

Mathematics
1 answer:
Rufina [12.5K]1 year ago
7 0

hi

-(3a-3) =   -3a +3    

you cannot do much more.  

You can  rewrite it as  3 ( -a +1)   or as  -3 ( a -1)  but nothing more really.

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Five divided by the difference of a number and 8 equals the quotient of 10 and the sum of a number and 7. Find the number.
Sati [7]

Answer:

Step-by-step explanation:

Let the number be x

Five divided by the difference of the number and 8 means

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Cross multiplying,

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2)

If Jon can paint the fence in 3 hours

This means Jon can paint the fence in 1/3 per hour

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Their combined rate is additive since they work simultaneously. Jon doesn't stop for Karen to work and Karen doesn't stop for Jon to work.

Their combined rate is

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The combined time per hour is 1/t per hour. Therefore 1/t = 8/15

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