Alina has 4 more dollars than Anthony has. Trang has twice as many dollars as Alina has. They have 48 dollars altogether. How many dollars does Anthony have?

A=Alina

Y=Anthony

T=Trang

Y+4=A

2A=T

A+T+Y=48

You want to know what T is

4+Y+T+Y=48

4+Y+2A+Y=48

2Y+4+2Y+8=48

3Y+12=48

3Y=36

Y=12

12 dollars

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)

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.