Quick Homework Help

# 33 kids like vollyball, 34 like softball, 39 like basketball, 20 like volley and softball, 10 like volley and basketball, 8 like soft and basketball, 3 like all, and 12 like none. How many kids r ther ⚑ Flag

by SolSun at December 15, 2010

Please write the answer and how you solved it. THANK YOU!!!!!!!!!!!!!!!!!

No, I not adding them up because the kids who have 2 sports they like r already added up in the main 1 sport.Like 33 kids like volleyball and 20 like volley and softball so the 20 kids are already added up into volley and softball.

well wouldnt you just add it all up?

tori. December 15, 2010

Cecilia-You see that each group is different and you said they are already added up so let's see.Symbols: V=volleyball S=softball B=basketball N=nothingIt's easy to do this downwards.V -33S -34B -39N -12Then we see the groups.V&S -20V&B -10S&B -8So we subtract them from each group.V- 33-20=12-10=3S- 34-20=14-8=6B- 39-10=29-8=21Let's add them up but don't forget the people hat don't like anything!And add the second number of every place. So....20+10+8+12+3+6+21=78But remember, don't add the same numbers. Like 10 and 10 because they are already groups. And your answer is 78!! Well there ya go.Hope this helps!

ChromeRedCat December 15, 2010

I think the  answer was 159.

sonia December 31, 2010

oh sorry i forgot i added the numbers up

sonia December 31, 2010