SOLUTION: Five brothers bought a gift for their mother�s birthday. The cost of the gift was 150 dollars. Moses gave 80 dollars, Daniel gave 21 dollars, Anthony gave 20 %, Lucas gave 18

Question 1122977: Five brothers bought a gift for their mother�s birthday.
The cost of the gift was 150 dollars. Moses gave 80 dollars,
Daniel gave 21 dollars, Anthony gave 20 %, Lucas gave
18 dollars and Mark paid the rest. How much was Mark�s
contribution?
Answer by Edwin McCravy(20054) (Show Source): You can put this solution on YOUR website!
Five brothers bought a gift for their mother�s birthday.
The cost of the gift was 150 dollars.
Moses gave 80 dollars,

So Moses' contribution = $80

Daniel gave 21 dollars,

So Daniel's contribution = $21

Anthony gave 20%,

Since 20% of $150 = (0.20)�($150) = $30, 
So Anthony's contribution was $30

Lucas gave 18 dollars

So Lucas' contribution was $18

and Mark paid the rest. How much was Mark�s contribution?

We add the contributions from Moses, Daniel, Anthony and Lucas:

 $80 Moses
  21 Daniel
  30 Anthony
 +18 Lucas
----
$149 Total contribution from other four besides Mark

Then we subtract

$150
-149
----
$  1 the amount Mark contributed, just one dollar!

Edwin

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