3 years ago

What is -3x +3y = 15 -2x - 6y = -14

Mathematics

2 answers:

Katarina [22]3 years ago

6 0

Answer:

Im doing it right now one second

Step-by-step explanation:

bogdanovich [222]3 years ago

4 0

The photo that I took shows the steps that I took to get(4,7) as the answer

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VladimirAG [237]

Answer:

n =-9

Step-by-step explanation:

-6n>54

Divided by negative 6

n=we change the Sign

n=-9

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It is given that m=3x+1 and y= (5/1+m^2). Find dy/dx in terms of x.

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Answer:

${ \underline{ \bf{ \frac{dy}{dx} = - \frac{30m}{ {(1 + {m}^{2}) }^{2} } }}}$

Step-by-step explanation:

${ \bf{m = 3x + 1}} \\ { \sf{ \frac{dm}{dx} = 3 }} \\ \\ { \bf{y = \frac{5}{1 + {m}^{2} } }} \\ \\ { \tt{ \frac{dy}{dm} = \frac{ - 10m}{ {(1 + {m}^{2} )}^{2} } }}$

Using chain rule:

${ \boxed{ \bf{ \frac{dy}{dx} = \frac{dy}{dm}. \frac{dm}{dx} }}}$

${ \sf{ \frac{dy}{dx} = - \frac{10m}{ {(1 + {m}^{2}) }^{2} } \times 3}} \\ \\ { \sf{ \frac{dy}{dx} = - \frac{30m}{ {(1 + {m}^{2}) }^{2} } }}$

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5/8 of 24 oranges were eaten. How many oranges were eaten?

Gekata [30.6K]

15 because you have to dive 24 by 8, you get 3. Then you multiply 3 and 5 and you get 15

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3 years ago

What is -3x +3y = 15 -2x - 6y = -14​

What is -3x +3y = 15 -2x - 6y = -14