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L 3. Three cookies have a total weight of 18.49 grams. If two of the cookies have a combined weight of 11.6 grams, what is the weight of the third cookie?

L 3. Three cookies have a total weight of 18.49 grams. If two of the cookies have a combined weight of 11.6 grams, what is the weight of the third cookie?
asked 68.4k views
18 votes
L

3.
Three cookies have a total weight of
18.49 grams. If two of the cookies
have a combined weight of 11.6 grams,
what is the weight of the third cookie?

asked
User Gousia Begum
by
8.1k points

1 Answer

10 votes

x + y + z = 18.49

x + y = 11.6

z = 18.49 - 11.6

z = 6.89 grams

answered
User Jeff Goldberg
by
7.7k points
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