cindyy3 cindyy3
  • 01-09-2017
  • Mathematics
contestada

If z varies directly as x and z=30 when x=8 fine z when x=4

Respuesta :

stevemosby0
stevemosby0 stevemosby0
  • 01-09-2017
So for this one all you have to do is use the formular

Z*k=x

30k=8

K=4/15

Then when x=4


4/15x=4

So x=15
Answer Link

Otras preguntas

Rheumatic fever is a bacterial disease that can result in degeneration of heart valves that would cause?
What is 3y = 15x - 12 in y = mx + b form ?
Solve by elimination:4x+7y =8-8x -14y= 5
if a sample of magnesium has a mass of 60 g, how many moles of magnesium does the sample contain
What Should I Know About Nigeria?
what is a prefix for marine
which point lies on the graph of the boundary line of the inequality 3y + 4x< 12
Solve the equation: -5/4n  = 40My answer choices are: A: n = -50, B: n = -32, C: n = 32, D: n = 50
what does the numerator tell us in fraction
The widths of two similar rectangles are 16 cm and 14 cm. What is the ratio of their perimeters? Of their areas? a. 8:7 and 64:49 b. 9:8 and 64:49 c. 8 and 81-