Question

Hannah finds purple, blue, and silver space rocks while exploring.

Answer 1

Answer:

She has 15 more purple rocks than blue.

Step-by-step explanation:

purple= 2/3 of all rocks

blue= 3/4 of all rocks that aren't purple

silver= 3 (or 1/4 of all rocks that aren't purple)

if 3 (silver) is 1/4 of all rocks that aren't purple, blue (3/4) is 3x3=9

if purple is 2/3 of all rocks, blue and silver are 1/3 of all rocks

so 1/3 of all rocks would be 9+3=12

if 1/3=12, then 2/3 (purple)=24

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At this point:

purple=24

blue=9

silver=3

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purple (24) - blue (9) =15

She has 15 more purple rocks than she does blue.