Answer:
24 students per mile
Step-by-step explanation:
Given in the question,
Length of rectangle for building university = 75 miles
Width of rectangle for building university = 25 miles
Total area:
Length x Width
= 75 x 25
= 1875 miles²
Only 70% of the buildings at this university are used for instruction
70% of 1875 miles²
70/100 x 1875
= 1312.5 miles²
32,125 students are enrolled at this university
So,
1312.5 miles² = 32,125 students
1 mile = 32,125/1312.5
= 24 students per mile
Answer:
1. There are a total of 19 marbles in the bag. The probability of picking a green marble out of them is 4/19 since there are only 4 green ones. The probability of picking a brown marble after replacing what has been initially picked is 1/19. The final probability is the product of the two probabilities and that is 4/361.
2. ?
3. 60%
Step-by-step explanation:
Answer:
650 gallons after 1 hour
Unit rate:650gallons/hour
Step-by-step explanation:
We are given that
Total capacity of pool=3185 gallon
In 2.5 hours water pool fill=1625 gallon
We have to find how many gallons of water fill in the pool after 1 hour and unit rate.
Using unitary method
1625 gallons of water takes time to fill the pool=2.5 hours
1 gallon of water takes time to fill pool=
hours
3185 gallon of water takes time to fill the pool=
hours
3185 gallon of water takes time to fill the pool=4.9 hours
1 hours , water fill in pool =
gallons
1 hours , water fill in pool=650 gallons
Unit rate: How many volumes of water fill in 1 hour.
Unit rate=![\frac{1625}{2.5}=650gallons/hour](https://tex.z-dn.net/?f=%5Cfrac%7B1625%7D%7B2.5%7D%3D650gallons%2Fhour)
Answer:
(1 ) Inner curved surface area of the well is 109.9 sq. meters.
(2) The cost of plastering the total curved surface area is 4396.
Step-by-step explanation:
The inner diameter = 3.5 m
Depth of the well = 10 m
Now, Diameter = 2 x Radius
⇒R = D/ 2 = 3.5/2 = 1.75
or, the inner radius of the well = 1.75 m
CURVED SURFACE AREA of cylinder = 2πr h
⇒The inner curved surface area = 2πr h = 2 ( 3.14) (1.75)(10)
= 109 sq. meters
Hence, the inner curved surface area of the well is 109.9 sq. meters.
Now, the cost of plastering the curved area is 40 per sq meters
So, the cost of total plastering total area = 109.9 x(Cost per meter sq.)
= 109.9 x (40)
= 4396
Hence, the cost of plastering the total curved surface area is 4396.
Answer:
200
Step-by-step explanation:
The total number of "ratio units" is 4+5 = 9, so each one stands for 1800/9 = 200 M&Ms.
The difference in red and green ratio units is 1 unit, so the difference in the count of M&Ms will be 200 pieces.