Asked by Anonymous
There are 250 marbles altogether. Johan has 20 more than Mary who has 50 less than John. How many marbles does John have?
Answers
Answered by
Damon
mary = x
johan = x+20
John = x+50
3 x + 70 = 250
3 x = 180
x = 60 = Mary
x+20 = 70 = johan
x+50 = 110 = John
johan = x+20
John = x+50
3 x + 70 = 250
3 x = 180
x = 60 = Mary
x+20 = 70 = johan
x+50 = 110 = John
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