patricia28 patricia28

15-07-2014
Mathematics

contestada

If y varies directly with x and x=4 when, y=20, find k, the constant of variation.

Respuesta :

15-07-2014

Direct variation means [ y = k x ]

Given . . . 20 = k 4

k = 20/4 = 5 .

Answer Link

Otras preguntas

A gas has a volume of 25 ml, at a pressure of 1 atmosphere (1 atm). Increase the volume to 125 ml and the temperature remains constant. What is the new pressure

What is the measure of angle Q to the nearest degree?

Which explanation describes the function relationship between n and f(n)? The relationship is a direct variation function because the sequence increases by a co

Which system of equations has NO SOLUTION? a. y = (5/4) x + 3 4y = 5x - 12 b. y = 2x + 1 y = (-3/2) x + 8 c. y = -4x - 3 y + 3 = -4x d. 2x - 5y = 12 20x

Which of the following statements about Japan is NOT true?: - Its large military results in a low crime rate. - It gives large amounts of money to poorer countr

Which of these is always present in the atmosphere? OA. hail ОВ. sleet Ос. water vapor D. snow

Increasing which factor will not increase the rate of a chemical reaction? A: concentration of reactants B: heat C: product D: surface area

descrierea locului natal

ANSWER ALL THREE QUESTIONS AND ILL GIVE U BRAINLIEST PLS AND THANK Uuu (i’m struggling if u can’t tell.) A radio signal travels at 4.00 x 10' meters per second

10 points. Any help is appreciated.