Math, asked by andrina, 1 year ago

plz help me with maths

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Answered by xyz44847

Answer:

A=2B-10

A=9+B

after solving B=19

Answered by Anonymous

Answer:

Pure calcium carbonate can be produced from marble, or it can be prepared by passing carbon dioxide into a solution of calcium hydroxide. In the later case calcium carbonate is derived from the mixture, forming a grade of product called "precipitated calcium carbonate,” or PCC.

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