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Queenashley3232
11.04.2021 •
Mathematics
Please help, if you’re correct I’ll mark you as brainiest!!!
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Ответ:
D. 16.7%
Step-by-step explanation:
Rate of return is:
R = (Vf - Vi) / Vi
R is the rate of return, Vf is the final value, and Vi is the initial value. Essentially, you're finding the change in value and dividing by the initial value.
R = (1750 - 1500) / 1500 = 0.167 = 16.7%
Make sure that you divide by the initial value, not the final. If you divided by 1750 instead, you would have gotten 14.3% which is not correct.
Make sure you check your sign as well. The value increased, so the rate of return is positive.
Ответ:
Option B.
Step-by-step explanation:
Let x be the number of cans of beans and y be the number of cans of corn.
Cafeteria’s budget allows it to purchase at most 60 cans of beans and 45 cans of corn.
1 can of beans feeds 5 students, and 1 can of corn feeds 6 students. Each student will have beans or corn, but not both, and there will be a maximum of 420 students at lunch.
Can of beans cost $2.00 and a can of corn cost $3.00.
Objective function, Z=2x+3y
The required linear programming problem is
Objective function, Z=2x+3y
Subject to the constraints
Draw the graph of these constraints as shown below.
The verities of common shaded region are (0,45), (30,45), (60,20), (60,0), (0,0).
Points Z=2x+3y
(0,0) 0
(0,45) 135
(30,45) 195
(60,20) 180
(60,0) 120
The maximum amount of money required to feed all of the students either beans or corn is $195.
Number of cans of beans = 30
Number of cans of corn = 45
Therefore, the correct option is B.