Determine the equation of joint variation. Then solve for the missing value.

x varies directly with y and z.

x = 400 when y = 8 and z = 10.

Find x when y = 10 and z = 12.

Here's another for you people - 5/6k = 1/6

Which one is the best method of finding triangle numbers

A plumber needs to drill a hole that is just slightly larger than 3/16 of an inch in diameter. Which measurement is the smallest but still larger than 3/16? 5/16 inch. 13/64 inch. 9/32 inch.

How to write 309017 in expanded form

Natile spent $28 on 2 dvd's. At this rate how much would 5 dvd's cost

What is 3.6:7.2? I got. 04 but I don't think that's the answer

A pattern has 1,000 identical circles. If 665 of the circles are orange, what decimal represents the part of the pattern that is orange? Why? A. 665 B. 66.5 C. 6.65 D. 0.665

Perpendicular lines form angles

The cost of manufacturing A certain type of headphone varies inversely as the number of headphones increase. If 5000 headphones can be manufactured for $15.00 each find the cost to manufacture 7,500 headphones

Twice jacks age plus five is 21. Write and solve an equation. How old is jack