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PolarNik [594]
3 years ago
11

How many solutions does the following linear equation have? y = -2x -4 y = 1/2x - 5

Mathematics
1 answer:
Andrews [41]3 years ago
5 0

Answer:

x=2/5, y=-24/5. (2/5, -24/5).

Step-by-step explanation:

y=-2x-4

y=1/2x-5

----------------

-2x-4=1/2x-5

-2x-1/2x-4=-5

-4/2x-1/2x=-5+4

-5/2x=-1

5/2x=1

x=1/(5/2)

x=2/5

y=1/2(2/5)-5

y=1/5-5

y=1/5-25/5

y=-24/5

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3 years ago
How far from an airport can an airplane fly and return in 8 hours, if it's outgoing speed is 160 km per hour and it's returning
PilotLPTM [1.2K]
<span>speed = distance/time
total time is 8 hours

outgoing speed is 160 km per hour, 
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3 years ago
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Rationalize the denominator in each expression. That is, rewrite the expression so that there is a rational expression in the de
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Answer:

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3 years ago
I'm thinking of a number. If you multiply it by 5 and then subtract 24, you will get -44. What is my number?
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Answer:

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5 0
2 years ago
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Answer quick pls!
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Answer:

$290

Step-by-step explanation:

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hope this helps :)

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2 years ago
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