If one-third of one-fourth of a number is 15, then three-tenth of that number is:

A

Step-by-step explanation:

54

Step-by-step explanation:

Let the number be x.

1/3 of 1/4 of x = 15 <=> 3 x 4 x 15 = x = 180

3/10 x 180 = 54

sounds & other waves originate from any vibrating object

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)