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3 years ago

-6x+6y=6 -6x + 3y=-12 ???

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

Answer

:x=5 y=6

Step-by-step explanation:

Darina [25.2K]3 years ago

5 0

Answer:

x=5 y=6

Step-by-step explanation:

Need to get rid of one variable to find one first. So I multiplied the second equation by -2 to get rid of y. So second equation becomes 12x-6y=24. add that to the first equation.

6x+6y=6

12x-6y=24

6x=30 then divide

x=5

then plug x into the original equation to get y.

-6(5) +6y=6

-30+6y=6 add 30 to both sides

6y=36 then divide

y=6

then put both into the original to make sure it makes sense

-6(5) +6(6)=6

-30+36=6

6=6

correct

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Step-by-step explanation:

Slope m = 5/6

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Read 2 more answers

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4 years ago

A certain insect can beat its wings 120 times per second write an equation in slope intercept from that shows the relationship b

dalvyx [7]

Answer:

The relationship between flying time in seconds in the number of times the insect beats its wings:

y = 120x

Step-by-step explanation:

The slope-intercept form of the line equation

$y = mx+b$

where

m is the rate of change or slope

b is the y-intercept

In our case,

Let 'x' be the flying time in seconds

Ley 'y' be the number of times the insect beats its wings

Given that a certain insect can beat its wings 120 times per second.

It indicates that the rate of change or slope = m = 120

In our case the y-intercept b = 0, as there is no initial condition mentioned here.

Now, substituting m = 120 and b = 0 in the slope-intercept form

y = mx+b

y = 120x+0

y = 120x

Therefore, the relationship between flying time in seconds in the number of times the insect beats its wings:

y = 120x

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3 years ago