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Jenny, Kenny, and Penny together have 51 marbles. Jenny has m marbles, Kenny has double as many marbles as Jenny has, and Penny has 12.

Jenny, Kenny, and Penny together have 51 marbles. Jenny has m marbles, Kenny has double as many marbles as Jenny has, and Penny has 12.
asked 39.1k views
17 votes
Jenny, Kenny, and Penny together have 51 marbles. Jenny has m marbles,

Kenny has double as many marbles as Jenny has, and Penny has 12.

asked
User Boney
by
8.7k points

1 Answer

5 votes

Answer:

m = 13

Explanation:

51 = m + 2m + 12

3m = 39

m = 13

answered
User Yasen Zhelev
by
8.1k points
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