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krek1111 [17]
3 years ago
12

2х + 7y = 1 2х - 4y = 12

Mathematics
1 answer:
solong [7]3 years ago
6 0

Answer:

What is the question or only

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What is y greater then or equal to 2x on a graph
Juliette [100K]

Answer:

The minimal number for the objective function P =20x+16y is: 780

The value of x then is: 15

and the value of y then is : 30

Step-by-step explanation:

We are given a system of inequalities as:

y is less than or equal to 2x

i.e.          y ≤ 2x--------(1)

x + y is greater than or equal to 45

i.e.      x+y ≥ 45  ------------(2)    

and    x is less than or equal to 30.    

i.e.               x ≤ 30 -----------(3)    

On plotting these inequalities we get the boundary points as:

        (15,30) , (30,60) and (30,15)    

( Since, the optimal solution always exist at the boundary point )

The optimal function is given by:

 Minimize  P = 20x+16y

Hence, at (15,30) we get:

P= 780

at (30,60) we get:

 P= 1560

at (30,15) we get:

P= 840

This  means that the minimal value of the function is 780

and the value exist at (15,30)

5 0
3 years ago
A power company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used. The function b(x) = { 0.150
Tresset [83]

Answer:

B

Step-by-step explanation:

the photosynthesis the of 14 showed me by diameting the equation of the perpendicularcity of the dude with lactose intolerantcey

7 0
3 years ago
The cost of a lack has increased by 30% to £65. Work out the original price
Sveta_85 [38]
Cost of lack increased by 30%

new cost of lack will be = 100% + 30% = 130%

We are given that new cost = £65

Thus 130% of original cost = 65

100% of original cost = 65 × 100/130 = £50

Thus original price was £50
7 0
3 years ago
6. GODEEPER Anders makes 7 fruit cups. He puts 2 green
Pie

Answer:

42

Step-by-step explanation:

because 2+2+2=6×7=42

5 0
3 years ago
What is the exact circumference of the circle?
tensa zangetsu [6.8K]
Your answer would be B.)
3 0
3 years ago
Read 2 more answers
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