tillyparker2006
tillyparker2006 tillyparker2006
  • 23-04-2020
  • Mathematics
contestada

Could someone help me with this question please!

X:y = 5: 3 and x + y = 56
Work out the value of x-y

Could someone help me with this question please Xy 5 3 and x y 56 Work out the value of xy class=

Respuesta :

kth03
kth03 kth03
  • 23-04-2020
x + y = 56 ------------------(1)
x:y = 5:3
x/y = 5/3
3 x = 5 y
so, x = (5/3)y---------------(2)
sub (2) in (1)
x + y = 56
(5/3)y + y = 56
5 y + 3 y = 168
  8 y  = 168
  y  =  168 / 8  = 21
x = (5/3) x 21
  =  35
the value of x - y = 35 - 21
                          = 14

Answer Link

Otras preguntas

_____ is defined as generating ideas by writing down everything that comes to mind on a subject. A. Mindfulness B. Reviewing C. Brainstorming D. R
who was charles Taze Russell
Solve the system of equations X+3y=-1 2x+2y=6
Homo erectus is believed to be the first confirmed species found outside of _____.
Zero is the additive identity for addition. For example,0+a=a,where a is a rational number. What is the multiplicative identity n such that a*n=a for any ration
context clues can make a dictionary absolete. true or false?
Mina's kitchen sink holds up to 103.468 liters of water. Round this amount to the nearest liter
how many thousands are there in 800,000
Please Help (Por favor ayuda) what is the plural form of the following: (¿cuál es la forma plural de la siguiente?) 1. la niña bonita 2. el niño enfermo 3. el
G.K. Chesterton believes that Saint Thomas Aquinas viewed man as a whole rather than as a beast like the anthropologists. Why did he think this?