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tankabanditka [31]
3 years ago
12

Answers for the 2 boxes please :)​

Mathematics
2 answers:
Papessa [141]3 years ago
7 0

Answer:

1 and 2

Step-by-step explanation:

4x+4y=12...eqn1^st

2x+y=4....eqn2^nd×2

multiplying eqn2^nd by 2 and subtract then,

4x+4y=12

-4x-2y=-8

or, 2y=4

or, y=4/2

y=2

again ,

from eqn2^nd

we have,

2x+y=4

or, 2x+2=4

or, 2x=4-2

or, 2x=2

or,x=2/2

x=1

monitta3 years ago
4 0

Answer:

x=1

y=2

Step-by-step explanation:

Multiply the second equation by 2

and then solve!

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3 years ago
A rectangular prism must have a base with an area of no more than 27 square meters. The width of the base must be 9 meters less
den301095 [7]

Answer:

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Step-by-step explanation:

Let

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so

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W=x-9 ------> equation B

L=W+6 -----> equation C

Substitute equation B in equation C

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Substitute equation B and equation D in the inequality A

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The solution for x is the interval---------->[0,12]

see the attached figure

but remember that

The width of the base must be 9 meters less than the height of the prism

so

the solution for x is the interval ------> (9,12]

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