Let t = number of hours
The first candle starts at 8 inches.
It burns at 7/10 inch per hour, so in t hours it burns (7/10)t inches.
After t hours, its length is 8 - (7/10)t
The second candle starts at 6 inches.
It burns at 1/5 inch per hour, so in t hours it burns (1/5)t inches.
After t hours, its length is 6 - (1/5)t
You want the lengths to be equal, so the equation is
8 - (7/10)t = 6 - (1/5)t
Answer:
650
Step-by-step explanation:
651.606881968=P
round: 650
Answer:
Step-by-step explanation:
D)hope it helpef
first of all b. is 6 because you need to mow 6 lawns in order to get 160$ in one week
but im still trynna figure out a so gimme a sec
