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Sikha
Sikha Sikha
  • 28-10-2014
  • Mathematics
Answered

if xy=10, what is the value of 2 times x/y times y^2? Please explain your answers.

A5

b)8

c)10

d)12

e)20

Verified Answer :

jroberts100
jroberts100 jroberts100
  • 28-10-2014
E20... x/y y^2 = xy. 2xy = 210 = 20
Answer Link
ollieboyne
ollieboyne ollieboyne
  • 28-10-2014

x = 10/y,

so\(2 \times x/y \times y^2\)

= \(2 \times \frac{10/y}{y} \times y^2\)

= \(= 2\times 10y^2/y^2\)

=\(=2\times 10 =20\)

Answer Link

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