3 years ago

Solve the simultaneous equations 7x – 3y = 24 2x + 3y = 3 x=? y =?

Mathematics

2 answers:

aliya0001 [1]3 years ago

8 0

which method you want cross multiplication method or elimination method of substitution method or general method

Ivahew [28]3 years ago

4 0

Answer:

×=3 y=-1

Step-by-step explanation:

I hope this helps

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Step-by-step explanation:

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3 years ago

Please show me how to solve the initial value problem <br> y'=tanx y(pi/4)=3

AlexFokin [52]

The ODE is separable, i.e. you can write

$\dfrac{\mathrm dy}{\mathrm dx}=\tan x\iff\mathrm dy=\tan x\,\mathrm dx$

Integrating both sides gives the general solution.

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Given that $y\left(\dfrac\pi4\right)=3$ , we have

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4 0

3 years ago

determine os valores de x e y sabendo que os numeros x,6 e 27 sao diramente proporcionais aos numeros 2, y e 18 nessa ordem

bazaltina [42]

Answer:

x=3 e y=4

Step-by-step explanation:

x/2=6/y=27/18

...

x/2=27/18

18.x=2.(27)

18x=54

x=54/18

x= 3

...

6/y=27/18

27y=6.(18)

27y=108

y=108/27

y=4

3 0

3 years ago