This is probably easy to answer but I’m tired soo...

Emmie has 72 rocks in her collection. 20 rocks are quartz, 16 are granite, 6 are obsidian, and the rest are slate. What is the ratio of rocks that are slate to the rocks that are quartz in SIMPLEST form?

Respuesta :

Answer:

6:30

Step-by-step explanation:

20+16+6= 42

72-42=30

there are 30 rocks that are slate

33Answer:

Step-by-step explanation:

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