Thursday

August 28, 2014

August 28, 2014

Posted by **Bobby Jones** on Sunday, September 30, 2012 at 2:01pm.

Variation x varies directly with y and z.

x=5 when y=10 and z=5. find x when y=20 and z=10

- ALGEBRA 1 -
**Reiny**, Sunday, September 30, 2012 at 3:08pm"x varies directly with y and z" ---> x = k(yz), where k is a constant

given: when x=5, y = 10 and z = 5

5 = k(10)(5)

50k = 5

k = 1/10

then x = (1/10)yz

for y=20, z=10

x = (1/10)(20(10) = 20

**Related Questions**

algebra - Determine the equation of combined variation. Then solve for the ...

math - Determine the equation of joint variation. Then solve for the missing ...

Variation - I have few questions that I need checked please and could you help ...

Check my answers. Algebra - Can you please check my answers? Thanxs! Write an ...

variation - Can you please check my answers? Thanxs! Write an equation that ...

variation - Can you please check my answers? Thanxs! Write an equation that ...

Variation-Check Problems - Can you please check my answers? Thanxs! Write an ...

algebra - Find the variation constaant and an equation of variation where Y ...

algebra - I have no clue what to do here can you tell me how to figure this? If ...

algebra1 - M varies directly with n; m=144 when n=8. What is the constant of ...