Penny had a bag of marbles. she gave one-third of them to rebecca, and then one-fourth of the remaining marbles to john. penny then had 24 marbles left in the bag. how many marbles were in the bag to start with?

48

Step-by-step explanation:

m - (1/3)m - (1/4)(2/3)m = 24

m - (1/3)m - (1/6)m = 24

m - (2/6)m - (1/6)m = 24

m - (3/6)m = 24

m - (1/2)m = 24

(1/2)m = 24

m = 48

it’s the first one your welcome

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