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Mabel has a total of 54 beads. Some beads are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads than white beads?
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Mabel has a total of 54 beads. Some beads are black and some are white. The ratio of the number of black beads to the number of white beads is 7:2. How many more black beads than white beads?

User Chris Keefe
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1 Answer

3 votes
7x+2x= 54
9x= 54
X=6

Black 7(6)=42
White 2(6)=12
=54
User Jitty Aandyan
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