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CHRISZAHNCRUZIN
Answered

a 4 1/2 inch candle burns down in 9 hours. after how many hours will it have burned 4 1/4 inches? use the drop down menu to state your answer as a decimal, mixed number, or improper fraction.

Answer :

ADIOABIOLAIN

The number of hours it will take to burn 4 1/4 inches of candle is 8.5 hours in decimal.

How to solve fractions?

Using ratio to solve, find the ratio of candle length to the time taken to burn down

let

  • x = time taken by 4 1/4 inches candle

4 1/2 : 9 = 4 1/4 : x

9/2 ÷ 9 = 17/4 ÷ x

9/2 × 1/9 = 17/4 × 1/x

1/2 = 17/4x

  • cross product

1 × 4x = 2 × 17

4x = 34

x = 34/4

x = 8.5 hours

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