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Assoli18 [71]
3 years ago
8

5x+2y=43 ; -6x+3y=-30

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0

Answer:

-3(5x+2y=43)

2(-6x +3=-30)

-15x-6y=-129

-12x+6y=-60

-27x=-189

x=7

5(7)+2y=43

35+2y=43

2y=8

y=4

(7,4)

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Gnesinka [82]

Answer:

11.8 m

Step-by-step explanation:

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What is the LCM of 36 and 60
GrogVix [38]
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gregori [183]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Andy is blowing up a spherically shaped balloon. If he is able to blow 81π cm^3 of air with every breath, it takes him 12 breath
Allisa [31]

The radius of the balloon given the information in the question is 8.98cm.

<h3>What is the radius of the balloon?</h3>

The first step is to determine the volum of the balloon.

Volume = 81π cm^3 x 12 = 972π cm^3

Now, determine the radius using this formula:

∛[Volume / (4/3π )]

∛[972π cm^3/ (4/3π )] = 8.98cm

Here is the complete question:

Andy is blowing up a spherically shaped balloon. If he is able to blow 81π cm^3 of air with every breath, it takes him 12 breaths to fully inflate the balloon. What is the radius of the balloon?

To learn more about the volume of a sphere, please check: brainly.com/question/13705125

5 0
2 years ago
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