howardmj80 howardmj80

03-03-2020
Mathematics

contestada

Solve for K, the constant of variation, in a joint variation problem where y=520, x=5, z=6.5. Solution is?

Respuesta :

Onoriodefelix Onoriodefelix

03-03-2020

Answer:

K = 676

Step-by-step explanation:

When y is directly proportional to x and inversely poportional to z

We have

y = kx/z

When y =520

x = 5

z = 6.5

K =?

We have

520 = k x 5/6.5

Cross multiply

520 x 6.5 = 5k

3380 = 5k

Divide both sides by 5

3380/5 = 5k/5

676 = k

k = 676

Answer Link

Otras preguntas

NaOH + H2SO4 =NaOH + HNO3 =Cu(OH)2 + HCl = H2SO4 = HNO3 =

20% of my money is £2.55 What is 2/5 of it?

A pack of 9 toilet rolls costs £4.23 A pack of 4 toilet rolls costs £1.96 Which pack gives the better value for money? You must show all your working.

Determine the half-life of potassium if in 3460 years a 200 g sample decayed into 25 g

The sum of a number and 18 times its reciprocal is 11. Find the number(s). Let x represent the unknown number. The Reciprocal of x is____?

Yolanda owns 4 rabbits. She expects the number of rabbits to double every year.a) after how many years will she have 64 rabbits?b) write and equation to model t

what is the answer to this question -√(12)+5√(75)

Explain how engineers and scientists may work together to produce a protein in the lab.

In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})? (A)The ion has a more stable electronic arrangement than the atom. (B)The pos

Why was there growing involvement of the USA in Europe in the years 1945-48 ??