katherinekinsey katherinekinsey
  • 23-04-2021
  • Mathematics
contestada

If y varies directly with x and y = 84 when x = 12, find y when x = 11.

Respuesta :

Leora03
Leora03 Leora03
  • 23-04-2021

Answer:

y= 77

Step-by-step explanation:

Write down the equation for direct proportion.

y= kx, where k is a constant.

Find the value of k.

When x= 12, y= 84,

84= k(12)

12k= 84

k= 84 ÷12

k= 7

Substitute the value of k into the equation.

y= 7x

When x=11,

y= 7(11)

y= 77

Answer Link

Otras preguntas

Will you pls help with this?
Moving a wire through a magnetic field created by two stationary permanent magnets will...: cause the magnets to move. create a current through the wire. produc
Rewrite the fraction pairs with common denominators a. 3/20 and 4/5 b. 8/21 and 6/7 C. 2/8 and 4/9
How is the geocentric model contrasted with the heliocentric model? A. Ptolemy's model was in place much longer than the model Copernicus devised. B. The Eart
How many grams of nickel are in a 25.0 g sample of nickel (II) fluoride?
Write an equivalent expression for -5(8-2x)
in julie of the wolves How does Kapugen explain his disappearance?
¿Cuál de las siguientes afirmaciones es una opinión?A. Es posible que las autoridades tomen conciencia de que no deberian limitar su recolección a los de proced
25. What is the total number of moles in 500 ml of a 3.0 M solution of potassium iodide solution? (1)1.0 (2) 1.5 (3) 3.0 (4) 3.5
6sin^2theta = 7- 5costhetaplease include all steps thank you ~ will give branliest !!​