Ilcienne9736
12.02.2021 •
Mathematics
I am not sure how to do this please
Solved
Show answers
More tips
- S Science and Technology Colliders: How They Work and Why They Matter...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- C Computers and Internet War of Social Media: Which Platform is the Leader?...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
Answers on questions: Mathematics
- M Mathematics Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?...
- M Mathematics Is the power produced directly proportional to the wind speed, give reasons for your answer?...
- M Mathematics Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9...
- M Mathematics Can someone me with these two circle theorem questions asap?...
- M Mathematics Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data...
- M Mathematics Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?...
- M Mathematics Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?...
- M Mathematics In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth....
- M Mathematics Runner ran 1 4/5 miles on monday and 6 3/10 on tuesday. how many times her monday’s distance was her tuesdays distance...
- M Mathematics If you could answer these your a life saver...
Ответ:
6 to the power of 2
Step-by-step explanation:
Im pretty sure when you are dividing powers you subtract them. Check that on maths watch first
Ответ:
minimum cost is $3250
You'll need 10 small buses and 10 large buses
x = number of large buses
y = number of small buses
The restrictions for x and y are 0 <= x <= 18 since we have at most 18 large buses (and x can't be negative) and 0 <= y <= 19 for similar reasoning (this time we have up to 19 small buses to work with).
Furthermore, x+y <= 20 represents the idea that only 20 drivers are available. Each bus gets a driver and x+y is the total number of buses in operation. We want x+y to be 20 or smaller.
We'll also be dealing with the equation 30x+15y = 450
30x = number of students that go on the x large buses
15y = number of students that go on the y small buses
30x+15y = total number of students = 450
The objective cost equation is
C = 225x+100y
with 225x being the cost of operating all the large buses and 100y being the cost of operating the small buses. We want to get C as small as possible.
Graph this system of inequalities
Note that the corner points shown in the diagram below are
A = (0, 0)
B = (0, 19)
C = (1, 19)
D = (10, 10)
E = (15, 0)
Plug each of those (x,y) values into the cost function C = 225x+100y
Ignore (0,0), since this is a trivial solution. Operating no buses at all will yield a cost of 0 dollars, but this isn't what we're after. Either x or y must be positive.
You should find that (0, 19) leads to the min value of C as it produces the smallest output for C. However, notice that
1 small bus = 15 students
19 small buses = 19*15 = 285 students
15+285 = 300 which is less than 450
So we'll need a few large buses. Focus on points that are on the boundary line of 30x+15y <= 450. Those points are D and E. Point D's coordinates will lead to C = 3250 being the smallest cost value. This time we're able to transport all 450 students
10 small buses = 10*15 = 150 students
10 large buses = 10*30 = 300 students
150+300 = 450 total
thank you