ellie6705 ellie6705

03-01-2018
Mathematics

contestada

If y varies directly with x and y=30 when x=-10, find the value of x when y=4

A. -4/3
B. 4/3
C. -3
D. -12

Explain

Respuesta :

habeebmusa24 habeebmusa24

03-01-2018

If y∞x then y=kx where k is constant to find k
k=y/x then substitute the values
k=30/-10=-3 to find x when y is 4
x=y/k=4/-3=-4/3 option A

Answer Link

Otras preguntas

There is an opportunity cost for all economic choices because.

Summarize the story of The Medicine Bag by Virginia Driving Hawk Sneve

this is my pc it had glowing rams but we changed them

HELP MEEEEE hey guys so this is US history on edge. and i have to write a supreme court opinion that describes your decision for United States v. Fields!!!! if

Set up and solve an equation to find the measure of each missing angle.

Scientists use _____ as chemical symbols. dots letters shapes lines

The discovery of mitochondrial DNA (mtDNA) had no effect on which area of scientific investigation?O endosymbiotic theoryO inheritance researchO forensic scienc

Which is the graph of f(x) = |x| +3?

help me solve the equation 4x+1=2x-5

1. Use “there” twice in the same sentence:________ 2. Use “they’re and “their” in the same sentence:________ 3. Use “they’re” and “there” in the same sentence:_