SOLUTION: At a picnic, the ratio of adults to children was 7 : 4.There were 15 more adults
than children. How many people were at the picnic?
Algebra ->
Percentage-and-ratio-word-problems
-> SOLUTION: At a picnic, the ratio of adults to children was 7 : 4.There were 15 more adults
than children. How many people were at the picnic?
Log On
Question 364421: At a picnic, the ratio of adults to children was 7 : 4.There were 15 more adults
than children. How many people were at the picnic? Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! Let A be the number of adults, C children.
1.
2.
From eq. 1,
From eq. 2,
Substitute from eq. 1,
Then from eq. 2,
