Hannah finds purple, blue, and silver space rocks while exploring. 2/3 of the rocks are purple and 3/4 of the remainder are blue. if there are 3 silver rocks, how many space rocks does hannah have?

The number of space rocks that Hannah has = 36 space rocks

We are told that;

Fraction left that is not purple = ⅓

Thus;

Fraction that is silver = 1 - (fraction that is purple + fraction that is blue)

Fraction that is silver = 1 - (⅔ + ¼)

Fraction that is silver = 1/12

(1/12)x = 3

Where x is total number of space rocks.

Thus;

x = 12 × 3

x = 36

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127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.