Ask a New Question

Question

20 children go for a picnic in a bus. They are to sit 2 or 3 to a seat. There are 7 seats. How many seats will have 3 children seated on them?
10 years ago

Answers

Reiny
seats with 2 on them --- x
seats with 3 on them --- y

x+y = 7 --- y = 7-x

2x + 3y = 20
2x + 3(7-x) = 20
2x + 21 - 3x = 20
-x = -1
x = 1

1 seat with 2 kids, 6 seats with 3 kids

(totally illegal where I live)
10 years ago

Related Questions

What day is Picnic? What day is the Picnic Day? What day is Picnic Day? (answer: It's Wednesday.)... We had our picnic near the capital of this new nation, which used to be the eastern part of Czechosl... For this picnic, you need to feed at least 300 people. If you want to feed everyone, but still have... 90 children were at a picnic on the beach. 3/5 of the boys and 5/8 of the girls were swimming. If 35... During a picnic, you and two of your friends decide to have a three-way tug-of-war, with three ropes... For another picnic you want to make hamburgers with pickles, again without having any left over. You... when 8 children go on a picnic,6/8 wear jeans. how many wear jeans When 8 children go on a picnic, 6/8 of them wear jeans, how many wear jeans Mei had a picnic with her school friends last weekend. She brought 910 ml of chocolate milk to be sh... While sitting on a picnic blanket at the park, Sami didn't notice ants swarming around her feet an...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use