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

A significant area of disagreement among delegates at the Constitutional Convention was

a.) write an equation in slope intercept form for the total cost of any number of tickets at 7 tickets for $5. b.) Write an equation in slope-intercept form for

The Sanchez family is going on vacation. If they drive for 3 hours at the posted speed (Speed limit is 65), how many miles will they travel?

Si la hija de Maria es la Madre de mi hija entonces Que soy yo de Maria

The United States disagrees with a government of a foreign country. So it imposes a(n) _____ on trade between the two countries. standard subsidy embargo

Three times geoffs age plus 3 is myrkas age. myrka is 48. what is geoffs age?

What does the design of the UN flag mean?

an ostritch can run at a rate of 50 miles in 60 minuites. how long would it take an ostrich to run 15 mikes

The mass murder of Jews in Russia was carried out by

For communication to take place, there has to be: A. transmission of the message. B. medium. C. sharing of meaning. D. absence of noise.