Answer:
option A is the answer....
The distance traveled by the certain object is the product of its speed and the time it traveled. Mathematically,
D = st
where s is the speed,and t is the time. Substituting the known values,
D = 12(x)
where x is the time in minutes.
D = 18(x - 15)
Equating the terms,
12(x) = 18(x - 15)
The value of x from the equation is 45 minutes or 0.75 hour.
D = (12 km/h)(0.75 h)
D = 9 km
Answer: 9 km
Answer:
18 logs.
Step-by-step explanation:
Since a stove burns 4 logs per 2 hours, then the stove will burn 2 logs in one hour. There fore in 9 hours the stove will burn 2*9 which is 18 logs.
4:2= 2 logs per hour
2*9=18 logs per 9 hours.
Fraction = 2/5.
Decimal = 0.4
