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

The Reconstruction Acts of 1867 set up a plan for allowing the Southern states to reenter the Union. They helped the South begin to repair the damage of the Civ

PLEASE ANSWER Angela is a member of the swim team 7 member of the swim team are boys the other 8 members of the swims teams are girls one member of Angela swim

What was the number of people who died from the i fluenza epidemic in 1918 ?

Which of the following is not one of the Great Lakes? A. Lake Michigan B. Lake Ontario C. Great Salt Lake D. Lake Huron

Find (-4x + 9) - (-12x - 11)

the shedd family had an 8' by 6' rectangular patio built for a cost of $1134. What is the number of dollars in the cost per square foot?

Three eighths of the students in ms. mulls class ride the bus. if there are 24 students in the class,how many students ride the bus

Soil composition and horizons vary depending on climate.

Sunlight produces a spectrum of colors that includes what?

Physics help!! Thanks if you do