David Makes Candles That Are 7cm Tall

question 34

Short Answer

David makes candles that are 7cm tall. Each candle burns 3 hours before going out. He is wondering how many hours a 21cm tall candle can burn for. Assuming that the relationship between the height of a candle and number of hours it burns is proportional; determine the proportion that can be used to model this scenario and how long a 21cm tall candle can burn for.

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Definitions:

Distinct Facial Characteristics

Unique facial features that can be used to identify individuals or sometimes are indicative of genetic conditions or syndromes.

Attracted

The action or power of evoking interest in or liking for someone or something.

Introduced

The act of presenting or bringing something into use, consideration, or play for the first time.

Recognition

The cognitive process of identifying previously encountered objects, ideas, or situations.