Seudónimo Seudónimo
  • 24-08-2020
  • Mathematics
contestada

reciprocal of x is 0.25, reciprocal of y is 10. work out value of xy

Respuesta :

jimrgrant1 jimrgrant1
  • 24-08-2020

Answer:

xy = [tex]\frac{2}{5}[/tex]

Step-by-step explanation:

Given the reciprocal of x is 0.25, that is [tex]\frac{1}{4}[/tex] then

x = [tex]\frac{1}{\frac{1}{4} }[/tex] = 4

Given the reciprocal of y is 10 then

y = [tex]\frac{1}{10}[/tex]

xy = 4 × [tex]\frac{1}{10}[/tex] = [tex]\frac{4}{10}[/tex] = [tex]\frac{2}{5}[/tex]

Answer Link
hashammuhammad430
hashammuhammad430 hashammuhammad430
  • 24-08-2020

Answer:

2/5=0.4

Step-by-step explanation:

[tex]\frac{1}{x}\\[/tex]=0.25 ==> x=4

[tex]\frac{1}{y}\\[/tex]=10    ==> y=1/10

Now multiply both x and y

xy=4(1/10)=2/5=0.4

Answer Link

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