Answer:
2000 bacterias
suppose, x is the bacteria
there are 500x . for the first 400 hours,the 500 x will double which gives=
500x2=1000 bacterias
then the next 400 hours,the 1000x will double which gives=
1000x2=2000 bacterias
Answer:
Sara bought 5 6 penny nails and 3 10 penny nails
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
The length form -1 to 2 is 3
The length from -3 to 2 is 5
√3²+5² = √9+25 =√36=6
Based on the given conditions, formulate:
Rearrange unknown terms to the left side of the equation:
Combine like terms:
Calculate the sum or difference:
Divide both sides of the equation by the coefficient of variable:
Answer: k=41/3
Answer:
The distance between the two train stations is 1728 km
Step-by-step explanation:
The speed of the bus = 54 km/h
The speed of the truck = 48 km/h
When the bus and truck meet again, the distance covered by the bus = 216 km more than he distance traveled by the truck
Let the distance between the two train stations = x
Let the location where they first meet be y from station A we have;
The location where they meet again = y - 216 km
Therefore, we have;
Location where they
The time for the truck and the bus to meet again = t
Therefore, 54 × t - 48 × t = 216 km
6·t = 216 km
t = 36 hours
Therefore, the time for the bus to travel x + 216 km = 36 hours
54 × 36 = 1944 = x + 216
x = 1944 - 216 = 1728 km
The distance between the two train stations = 1728 km.
