3 years ago

Solve for x (4/y) + (3/x) = 8 (6/y) + (5/x) = 13

Mathematics

1 answer:

oee [108]3 years ago

5 0

Answer:

0.5

Step-by-step explanation:

Given data

$\frac{4}{y} +\frac{3}{x} =8\\\frac{6}{y}+\frac{5}{x} =13$

Now,

4x+3y=8xy......(i)

6x+5y=13xy.......(ii)

Multiply by 5 in equation (i) and by 3 in equation (ii)

20x+15y=40xy.....(iii)

18x+15y=39xy.....(iV)

Solving above equation (iii) and (iv)

2x=xy

y=2

Now, putting the y=2 in equation (i)

4x+3(2)=8x(2)

4x+6=16x

6=12x

x=0.5

Value of x=0.5

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galina1969 [7]

Answer:

$\frac{\frac{1000}{x+h}-\frac{1000}{x}}{h}$ is your average rate of change,

Step-by-step explanation:

average rate of change is

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Elan Coil [88]

Answer:

x = 7 , y= - 6

Step-by-step explanation:

4x = -2 - 5y ___(1)

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3 years ago