4 years ago

Graph the feasibility region represented by the given inequalities and find the maximum profit if P=4x+5y. x>or=5 y

1 answer:

8 0

One of these doesn't seem to be required information for a feasibility region. Are you sure that these are the correct equations?

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Alexeev081 [22]

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3 years ago

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

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4 years ago

A hiker walks at a speed of 3 2/5 km per hour. how many km will he walk in 3/4 of an hour

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Answer:

2.55

Step-by-step explanation:

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3 years ago

Find the product of 4 2/7 x 3 1/2

Fiesta28 [93]

Answer:

Hey there!

The product of these two fractions would equal 15.

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Mrs. Lynch has noted that 7 out of every 10 pieces of mail she gets are junk mail. What percent of her mail is junk?

-BARSIC- [3]

I think it would be 70% of her mail

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