Did you ever figure it out?
Answer:
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Step-by-step explanation:
Lets solve!
We have to find out how much of the candle needs to be burned!
14cm - 6cm = 8cm
The candle must burn 8cm in 4 hours!
Lets find out how much the candle burns in 1 hour.
= 2cm per hour
The candle must burn at 2cm per hour in order to be 6cm tall after 4 hours. I know this because the candle has to burn 8cm in 4 hours and that amounts to 2cm per hour.
Woohoo, We did it! <u>Would you like to mark my answer as brainliest?</u> I would love that!
Answer:
8 s
Step-by-step explanation:
The time, t it takes the wave to move from its crest highest point to its lowest point is half of its period, T.
That is t = T/2
Given that t = 4 s, and making T subject of the formula, we have
T = 2t
Substituting t = 4 s into T, we have
T = 2t
T = 2 × 4 s
T = 8 s
So, its period is 8 s
The sum of two adjacent sides is 11 inches, so the long sides are 9 inches. The "unknown number" must be 12.