Given that a candle is 13 inches tall when it has been burni

Given that a candle is 13 inches tall when it has been burning for 5 hours at a rate of 0.75 inches per hour,

a. How tall was the candle when it had been burning for 3.5 hours?

Solution

the height of the candle is 13 inches

rate of the burning candle is 0.75 inches per hour

for 3,5 hours the candle height =13-0.75*3.5

                                            =10.375