Answer:
45 minutes
Step-by-step explanation:
97-52 = 45
Answer: There are 12 bills for $20, 13 bills for $10 and 14 bills for $5.
Step-by-step explanation:
Let the number of twenties be x
Let the number of tens be x+1
Let the number of fives be x+2
Amount from twenties will be given as
![20\times x=20x](https://tex.z-dn.net/?f=20%5Ctimes%20x%3D20x)
Amount from tens will be given as
![10\times (x+1)=10x+10](https://tex.z-dn.net/?f=10%5Ctimes%20%28x%2B1%29%3D10x%2B10)
Amount from fives will be given as
![5\times (x+2)=5x+10](https://tex.z-dn.net/?f=5%5Ctimes%20%28x%2B2%29%3D5x%2B10)
According to question,
![20x+10x+10+5x+10=440\\\\35x+20=440\\\\35x=440-20\\\\35x=420\\\\x=\frac{420}{35}\\\\x=12](https://tex.z-dn.net/?f=20x%2B10x%2B10%2B5x%2B10%3D440%5C%5C%5C%5C35x%2B20%3D440%5C%5C%5C%5C35x%3D440-20%5C%5C%5C%5C35x%3D420%5C%5C%5C%5Cx%3D%5Cfrac%7B420%7D%7B35%7D%5C%5C%5C%5Cx%3D12)
So, there are 12 bills for $20, 13 bills for $10 and 14 bills for $5.
Answer:
distance apart= 9 miles
Step-by-step explanation:
The library , post office and gas station are all on elm street. The library is 3 miles away westward of the post office. The gas station is also 6 miles east of the post office. The distance between the library and the gas station can be computed below.
The post office is located at the middle between the library and the gas station. The library goes 3 miles westward of the post office while the gas station goes 6 miles eastward of the post office. The distance apart between the library and the gas station is the sum of the distance of the gas station from the post office and the distance of the library from the post office .
Therefore,
6miles + 3 miles = 9 miles
P=3000x e^( 1000 x 8t )is the function
t is time, so "after a hour" means that the t is 1.
The problem is asking for the population, which is P
Substitute t for 1 and you obtain:
P= 3000 x e^(1000 x 8 x 1)
P=3000e^8000