Posted by maxy on Thursday, December 13, 2012 at 6:36pm.
there was a total of 840 guests at a wedding dinner. 60% of them were adults, and the rest were children. some boys left before the dessert was served. as a result, the percentage of adults increased to 70%. how many boys left before the dessert was served
- algebra - Damon, Thursday, December 13, 2012 at 7:12pm
840 - b total
336 - b children
504 adults = .7(840 -b)
- algebra - Anonymous, Tuesday, February 12, 2013 at 5:23pm
- algebra - Mathster, Tuesday, February 3, 2015 at 10:10pm
120 boys left before dessert was served
- algebra - JOHN CENA, Thursday, July 21, 2016 at 2:37pm
60% = 504
30% = 336
Solve by Proportion
504/336-x = 7/3
2352 - 7x = 1512
-7x = -840
x = 120
Answer This Question
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