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Jennifer made 70 cookies to sell to her friends. She sold 20 more sugar cookies than chocolate chip cookies. If all of the cookies were sold, how many were sugar cookies?
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2 votes
Jennifer made 70 cookies to sell to her friends. She sold 20 more sugar cookies than chocolate chip cookies. If all of the cookies were sold, how many were sugar cookies?

User Qevo
by
8.5k points

2 Answers

1 vote
chocolate chip cookies sold=c
sugar cookies sold= s
c+20=s
c+s=70
c+c+20=70
2c+20=70
2c=50
c=25
25+20=45 sugar cookies
Just to check 45+25=70

She sold 45 sugar cookies

Hope this helps :)

User Abhijith Konnayil
by
7.6k points
5 votes
Trial and error

70=c+(c+20)
70=2c + 20
-20 -20
50=2c
÷2 ÷2
25=choco cookies

70-25=35

35=sugar cookies
CHECK....

25=35=70
It is correct
User StalkerMuse
by
8.2k points
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